Humidifier test 2022 which one is the best

The best humidifierWe have tested 37 humidifiers. The best for us is the Philips HU4814. The evaporator humidifies the room evenly, is easy to maintain, and offers the best value – even though it didn't come out on top in humidification performance in the test. Units with additional air washing are significantly more expensive. Ultrasonic humidifiers are the cheapest way to increase humidity, but they have some drawbacks.

Is a writer and tech geek and has a soft spot for all things electronic. For AllesBeste he tests, among other things, smart home and household appliances and everything for the male facial hair care. We have reviewed the test. The availability of individual products updated. Our recommendations are still up to date.

We have tested five other humidifiers. New recommendations are the affordable Amazon Basics AMZHMDSMEU-4.0W and the Levoit VeSync Classic 300S. The Beurer LW 220 slips out of our recommendations. Can now be found under "Also tested. We've been working with the Boneco H300 Hybrid. The Meaco Deluxe 202 was followed by two other units tested. However, our recommendations do not change.

We have tested six other humidifiers. The Venta Comfort Plus LW45 replaces the Venta Original LW25 as a recommendation. In addition, our previous recommendation Levoit LV600HH is no longer available. We have removed the model.

We have tested eight new humidifiers. The Levoit LV600HH is a new recommendation for those who are eager to buy an ultrasound device.

We have tested eight new humidifiers. Our test winner is the successor model of our previous favorite – the Philips HU4814. We are constantly testing new products. Update our recommendations regularly. We will be happy to inform you as soon as this article is updated.

Especially in winter, many suffer from dry air in living spaces. Good that there is a remedy in the form of humidifiers, some of which even come along quite stylish and fit well into the room image.

The price range of the devices is enormous: Cheap devices are available from 30 euros, but you can also spend more than 400 euros for a humidifier. Do you really need it?

The price differences can be explained in part by the three different humidification techniques used in humidifiers. They work either on the evaporation principle, vaporizing water or atomizing it with ultrasound. You can read about the advantages and disadvantages of each technology in the humidification technologies section.

We tested 37 humidifiers with different humidification principles, of which 22 are currently still available. Here are our recommendations in a nutshell:

Short overview: Our recommendations

Philips HU4814

It doesn't humidify the air the best, but it's the clear price-performance winner and thus our favorite. In addition, it has a comprehensive equipment package and is easy to clean.

The Philips HU4814 is not the most powerful humidifier in our test, but it is the clear price-performance winner. If you can do without using it in the bedroom at night, you get an elegant, easy-to-use and durable humidifier. There are no superfluous functions, yet you can customize the device to your needs. This makes the Philips a solid first place winner.

Venta Comfort Plus LW45

If you value high quality and don't need to save money or space, Venta will serve you well. The ComfortPlus LW45 is a well-designed device that does not require a filter change due to its design. Primarily an air washer, it humidifies the air with the help of a rotating roller in a water basin. Cleaning is exemplary simple. However, not everyone will have a suitable place for the bulky box – and the acquisition costs are considerable.

Beurer LB 55

If you don't want to spend a lot, the Beurer LB 55 is a good choice. Unlike many other inexpensive devices, it does not atomize but evaporates, which is much better. Although the LB 55 has only two effect levels, but humidifies reliably and has a discreet design. It is a bit bigger than other devices, but handling is very easy and a filter is not needed. You can use lime pads, of which 15 are included – but in our experience, the humidifier still needs to be additionally decalcified. However, you have to do without an exact humidity setting.

Levoit VeSync Classic 300S

If you want an ultrasonic nebulizer, the Levoit VeSync Classic 300S is a solid specimen. It's well made, very quiet in operation and mostly convenient to clean, plus it doesn't cost the earth. If you want, you can control the device via app or voice assistant. Unfortunately, the automatic mode does not work as desired, because the built-in hygrostat is inaccurate. In addition, there are the usual undesirable side effects that come with atomizers in general.

Amazon Basics AMZHMDSMEU-4.0W

The humidifier from Amazon Basics attracts mainly with its low price. While it doesn't set new records in any discipline, it does what is expected of it, and even comes with some small conveniences. The handling is easy, this also applies to the cleaning of the easily accessible water tank. The downsides include the relatively leisurely humidification speed, the relatively high operating noise and the fact that it works on the atomizer principle.

Comparison table

– Filters have to be purchased separately

– Air washing – Good equipment – No filter change necessary – Low power consumption – Easy cleaning

– Expensive – Very large – Water tank or. -Not removable tub – Display can not be switched off – Very loud at the highest level

– Good price – discreet design

– Somewhat noisy – High electricity costs

– Attractive design – App control – Fair price – Tank can be filled from the top

– Very inaccurate hygrostat

– Inexpensive – Easy to use – Good to clean – Removable water tank

– Relatively loud – Relatively low humidification performance

– Good humidification performance – Optional air purification – Good features – Removable water tank

– Somewhat uncomfortable operation – water leakage easily possible if handled carelessly

– Consistent humidification performance – air washing& optional air purification – Good equipment – Solid app – Removable water tray

– Expensive – Expensive replacement filters – Few operating options on the unit

– Little surface humidification – filters have to be bought again

– With app – Air wash – Many setting options and functions

– Very expensive – Large and heavy – Small tank

– Easy to clean – Many settings – Good value for money – Discreet design

– Built-in hygrometer fluctuates greatly – filters must be purchased separately

– Air washing – No filter needed

– Low equipment – Very expensive

– Dishwasher safe – Air wash – No filter needed

– App control – Good range of functions – Solid humidification performance – Fair price

– Outlet nozzle can't be turned – Somewhat fiddly tank cap – Boring design

– Very high humidification performance – Attractive design – Cold and warm mist – Tank must be inverted for filling

– Difficult to clean – High power consumption when warm mist is present

– Good performance – Easy to use – Cold and warm mist – Removable water tank

– Very high power consumption with warm mist – Loud, annoying button sounds that cannot be switched off – Difficult to clean

– Compact – Easy to use – Good price

– Low functionality – Lighting cannot be dimmed or switched off

– Nice design – Space saving – Low power consumption

– Moderate humidification performance – Relatively loud – Relatively expensive – Expensive replaceable filters – Cut-down functional scope

– Nice design – hygrostat and auto-off when the tank is empty

– Moderate humidification performance – Relatively loud – Relatively expensive – Expensive replacement filters

– Discreet design

– Little surface humidification

– Humidifies quickly

– High center of gravity, tips over easily – Thin power cord& Connection at the bottom of the unit – disturbing operating noise

– Beautiful design – Compact dimensions – Removable water tank – Cold and warm mist

– Poor workmanship (defective filter ex works) – Relatively high power consumption – Whirrs audibly and gurgles, annoying – Wets the floor around it

How dry air is created?

How much water air can hold depends largely on the temperature of the air. At 20 degrees Celsius, the air in a 20 square meter room can hold a maximum of 830 milliliters, a little more than a bottle of wine. At zero degrees, however, the air in the same room can only absorb a maximum of 230 milliliters, and at -10 degrees only 110 milliliters.

Cold air can absorb much less water than warm air

So even if the air is completely saturated with water in winter, when you ventilate, you bring air with little water into the house. As the air is subsequently heated by the heater, the maximum absorption capacity of the air increases – in other words, this causes the relative humidity to fall. If you heat zero degrees cold air that is completely saturated with water (100 percent humidity) to 20 degrees, you will have air in the home with only 27 percent relative humidity – so the air is very dry. This is what is commonly referred to as "dry heated air".

Dry air wants to absorb moisture and it finds it on our skin and mucous membranes, among other things. The result: you dry out. This can lead to irritation. One becomes more susceptible to infections. Humidifying living spaces helps against this.

If you decide to humidify the air with a unit of your choice, it will take a while in the beginning for dry wood in furniture or the parquet floor and objects like books to absorb the first push of moisture. Only then the humidity of the room air increases significantly. No matter what type of humidifier you choose: It is recommended to let it work at full capacity for one or two days in the beginning.

What humidity is optimal?

If you ask manufacturers of humidifiers, you will get quite relevant statements, which humidity is the right one for the human organism and its health. But if you take a closer look, you will get more differentiated information, some of which even contradict each other.

The Federal Environment Agency recommends 40 to 60 percent humidity in living spaces. Such values are perceived as pleasant by most people. The head of the Federal Environment Agency Dr.-Ing. Heinz-Jorn Moriske states 30 percent as the lower limit. However, you only feel comfortable with it as long as no dust irritates the nasal mucosa. Unfortunately, this can happen quickly at 30 percent humidity. Over 60 percent humidity is again not suitable for living rooms, because then mold can develop.

The German Society for Ear, Nose and Throat Medicine also gives advice on air humidity from a medical point of view. She considers 20 degrees room temperature and 50 percent relative humidity to be optimal in living rooms. This means that the recommended range for lung function of between 40 and 60 percent is exactly right.

Between 40 and 60 percent humidity is perceived as pleasant

If the humidity is 30 percent or less, there is no health risk, but it can be perceived as unpleasant – this varies from person to person. The bedroom, however, should be cooler. Be drier than the living rooms. Age also plays a role in how we feel: older people are more sensitive to dry air than young people. This is usually noticed by more frequent nosebleeds. In such cases, doctors recommend a humidity of 60 percent.

Nasal mucous membranes and lungs recover quickly from too dry air by a visit to the sauna or targeted inhalation.

Also the German Dermatological Society e. V. has commented on the subject of air humidity. Just like the lungs and mucous membranes, the skin also feels most comfortable with 40-60 percent air humidity. Determined, clear limit values are not there however.

Three humidification techniques

There are three different methods of humidifying air. All three are used in humidifiers – and all have advantages and disadvantages.

Atomize

In principle, you can also use the familiar hand sprayer for atomizing water, which is commonly used for humidifying plants. Water is forced through a nozzle by a pump. Small air droplets are distributed in the room. However, these not only humidify the air, but also furniture or paper.

Ultrasonic atomizers do exactly the same thing in principle. With them, the water is set into high-frequency oscillations. The finest water droplets are formed. These are blown out by the devices, so that they are distributed in the air and in the room. At a certain output rate, a clearly visible, bright mist forms directly above the device, which steadily dissipates. Nearby furniture or the floor become damp from a larger discharge amount.

If water with a very high lime content comes out of the pipe, ultrasonic atomizers may cause a fine film of lime to form on furniture after a while. In terms of hygiene, atomization also has a disadvantage compared to the other techniques. If there are germs in the water, they are contained in the water droplets, as the Federal Environment Agency explains. Therefore, with this type of humidification, you would inhale the germs directly, which could lead to health problems. The other humidification principles keep the germs in the device, they do not get into the air you breathe. Therefore it is said: With atomizers, you have to do a thorough cleaning very often!

Evaporate

If water is heated, it evaporates. The hotter it is, the faster it happens. With the kettle or the cooking pot, a lot of water vapor is produced, if you put bowls with water on the heater, it goes slower, but the principle is the same.

The natural air circulation in the room usually distributes the moisture largely evenly. According to the Federal Environment Agency, there is nothing to stop you doing exactly that, as long as you follow the above hygiene guidelines. A hygrometer can tell you whether there is enough humidity in the room to meet your requirements.

In our winter test, two small bowls in a 15-square-meter room produced a relative humidity of about 35 percent at a room temperature of about 21 degrees – too low for most people.

Therefore, there are also special evaporators as humidifiers. They are also relatively inexpensive. However, these devices also have two disadvantages: First, you often hear the sound of boiling water, and second, they consume a lot of electricity. Nevertheless, for us they are a better choice than atomizers if you don't want to spend a lot of money on the device itself.

Evaporation

Everyone knows evaporation, too, for example when hanging laundry out to dry. The air automatically absorbs moisture during its natural circulation through the room because it is drier than the laundry.

ENT specialist Jorg Lindemann points out that, as a rule, the regular hanging of laundry alone ensures sufficient humidity in an apartment. This is easily the case, for example, with the laundry load of a family of four. In addition, frequent cooking and showering or bathing, since this moisture is also distributed in the apartment and refreshes the respiratory tract.

Regularly drying wet laundry creates good humidity in the air

With appropriate air humidification devices, nothing else actually happens than what also happens when the laundry dries: The room air comes into contact with a humidified surface and absorbs the moisture from there.

In order to make the device as compact as possible, it is necessary to create a lot of humidified surface in a small space. There are two different solutions for this: either you distribute the water in a kind of sponge, which offers a large surface due to its structure, or you distribute the water on rollers with numerous thin plates.

In addition, the air circulation in evaporative humidifiers is specifically increased by a built-in fan, which further increases the efficiency and makes it possible to influence the degree of air humidification.

The evaporation principle has only one major disadvantage: The devices are often relatively expensive for reasons that are difficult to understand. Because actually the technology for this is simple.

Additional function: air washing

In addition, devices are advertised that not only humidify, but also purify the air. They absorb dust, pollen and other fine solids, which can be particularly useful for allergy sufferers.

For our test, this represents an additional function, which we describe, but which does not influence the assessment of the humidification performance. However, we did not want to withhold the interesting cleaning aspect from you.

Are humidifiers bacterial slingshots?

Even if again and again one speaks of it: Humidifiers with and without filters do not produce any dangerous contents – provided that normal cleanliness is maintained. According to Heinz-Jorn Moriske of the Federal Environment Agency, germs only form in stagnant water, especially when the water is heated and polluted with dust. Such stagnant water would also occur in small niches in devices, where water collects and forms a closed surface. The same even applies to thin, film-like areas of moisture. Single drops, on the other hand, are not dangerous.

Germination can start in summer after about 14 days, in winter it takes even longer. Who uses its air humidifier, uses the water in clearly shorter time. In this case, according to the expert from the Federal Environmental Agency, germs are also not created.

If you do not use a filled humidifier for weeks, germ formation can occur. You should clean it before switching it on. Fill with fresh water.

One should follow the recommended cleaning cycles for the respective device. This primarily prevents calcification, but also gives germs no chance. Any filtering techniques or additives that prevent germ formation are considered superfluous or even dangerous by the expert. Moisture can remain in filters. Even promote the formation of germs. And whether additives deliver what they promise is uncertain. He even expressed concerns, because you never know if the additives might even pollute the air you breathe with chemicals, contrary to the manufacturer's claims.

Water additives against germ formation are superfluous

Asked by us in detail, the manufacturers expressed that they "recommend" cleaning additives. However, they do not want to prescribe the substances as a "necessity" either. Conclusion: The resulting follow-up costs can be quietly avoided, but as a first principle you should follow the usual rules of hygiene.

Test winner: Philips HU4814

In our opinion, the Philips HU4814 offers the best price-performance ratio. The evaporator humidifies the room very evenly. Features a hygrometer with automatic humidity control.

Doesn't humidify the air the best, but is the clear price-performance winner, making it our favorite. It also has an extensive equipment package and is easy to clean. The Philips also comes with a timer. Easy to clean. In addition, it also looks elegant. According to technical specifications, it humidifies rooms with a floor area of up to 44 square meters.

Clean principle

What Philips markets grandiloquently as "Nano Cloud technology" is ultimately nothing more than normal evaporation. The core of the device is a honeycomb-like, perforated plastic cylinder, which stands in the water and soaks up the water. The porous structure of this filter creates a large surface area over which the water evaporates. The fan above it distributes the humidity in the room.

According to the instructions, the filter should be soaked in clear water for one hour once a week and cleaned with it. Since the fan constantly attracts dust, which gets stuck in the filter and contaminates it, this is also necessary. The cleaning works out so but very simple.

If you want to replace the filter after some time, you can buy a replacement filter for around 13 euros. According to the instructions, the filter should be changed at least once a year, the manufacturer recommends replacing it every three months. However, the discretion of the user plays a role here. If the filter does not show any material fatigue, the usage time should hardly be limited.

The container in which the filter is located and into which water is filled has almost exclusively smooth surfaces without niches and is therefore easy to clean. Disassembly and reassembly of the Philips is also quick and easy.

The evaporation does not make the floor or furniture damp. Therefore, the Philips is also ideally suited for the office.

Important from our point of view: The Philips HU4814, like all other tested devices, is easy to carry around even when filled with water. So you can easily use only one humidifier in several rooms.

Simple handling

Not only the cleaning works without problems. Refilling the container also runs smoothly and cleanly. The fan is also the lid of the device, which can be removed for refilling. With a watering can or similar, the water level can be brought to the desired level. Everything around the device remains dry. Since the water reservoir is rather small, it has to be refilled up to once a day, depending on the degree of humidification.

If the water level is too low, the HU4814 turns itself off, and a red warning light lights up in the display in the center of the lid. The water level can be constantly checked by looking through the window on the side of the device.

Simple handling and easy cleaning

The operation of the humidification levels, the timer and all other functions is largely intuitive. The humidification level can be set in three stages. The first stage allows quiet humidification.

Negatively, we noticed only a quiet, rather low-frequency whirring, which could perhaps be annoying to one or the other. If you set it to automatic, with a limit on the degree of humidification, you also have to put up with the fan turning on and off quite frequently. This may also get on the nerves of noise-sensitive people.

For these reasons, our assessment is that the Philips HU4814 is rather less suitable for the bedroom – at least if you want to let it run through the night. But almost all humidifiers have this problem.

Full equipment package

A rare extra for a humidifier are the timer, an integrated hygrometer and automatic humidity control with input of a maximum value.

The automatic function is convenient when the humidifier should not exceed high humidity values. You can set a target value of 40, 50 or 60 percent relative humidity. The hygrometer functioned reliably and with sufficient accuracy in our test. In principle, however, another hygrometer is recommended, because the humidity measurement in the device is nowhere near as meaningful as that of a hygrometer that measures at a suitable distance from the humidifier – after all, the air near the humidifier is more humid than in the rest of the room.

The three performance levels are practical and especially helpful in the beginning, when the room only releases the humidity to the furnishings for the time being. During this time, the highest level is required.

The integrated timer at least helps to save water and electricity. After a choice of one, four or eight hours, it switches off humidification if desired.

Humidification performance

Like the other vaporizers in the test, we can only attest the Philips a mediocre humidification performance. This means that if you want to achieve a relative humidity of more than 55 percent in winter, you can hardly do it with this device. However, this is also quite a high humidity value. If you calculate with practical values up to 50 percent, the Philips HU4814 is a reliable partner.

However, you should not rely on the maximum room size of 44 square meters. If you want to humidify such a large room, you should look for a more powerful device.

Philips HU4814 in the test mirror

The ETM Testmagazin (11/2019) has also tested the Philips HU4814. The colleagues also show themselves taken with the device: with an overall rating of 94.1%, it achieved the rating "very good" and was the test winner among seven tested models. Above all the material was praised-. Quality of workmanship and intuitive operation.

Alternatives

In the family of evaporators, there are even more powerful models than the Philips HU4814 when it comes to humidification. Even if you prefer to have a vaporizer or an atomizer despite the disadvantages, we have suitable recommendations.

Big and classy: Venta Comfort Plus LW45

The Venta ComfortPlus LW45 is actually first and foremost an air washer, and this is noticeable in many places. The volume and weight are unusually high, the noise level is at least higher than usual, and the interior spins Venta's signature 3D plate stacks. The device is sophisticated, but also very expensive. Why the manufacturer charges so much money is beyond us, because the technology is exceedingly simple: The device basically consists of a fan and a roller with many discs made of plastic.

Compared to the LW45, which is still available and now bears the name "Original", Venta has added a few upgrades to its "Comfort Plus" model. The most eye-catching feature is definitely the display, which is prominently emblazoned on the top of the device and shows, among other things, the humidity of the room. The fact that this is possible already points to another innovation: In contrast to the old-fashioned original LW45, the ComfortPlus has a hygrostat as well as a hygrometer. And from this comes perhaps the most valuable advantage over the original: The air washer now finally has an automatic mode.

As already mentioned, there is a so-called "plate stack" inside the device instead of a classic filter. This is a plastic roller with many thin plastic discs that rotates through the water tray during operation, continuously wetting itself with water and carrying dirt particles from the air into the water. This saves money in the long run, because it eliminates the need for filters that have to be replaced regularly in other humidifiers and cause running costs. The principle is the same as that of the Beurer LW 220, but Venta claims to have invented the technology.

Since the end of December 2020, new units of the Venta Comfort Plus LW45 are delivered with a new variant of the plate stack called "VentWave", while older packages still contain the classic plate stack, which we also tested.

Even if no filters need to be changed, the Venta ComfortPlus LW45 of course requires some care as well. Fortunately, this is limited to the occasional cleaning of the plate stack and the water tray. Here, some other manufacturers can still learn something, because you notice that Venta has put special emphasis on this point: Everything is easily accessible, nothing blocks access to remote corners, and if necessary, the upper part can even be folded apart. Super!

Due to the design, but not exactly pleasant, is the fact that there is no separate water tank that can be removed for filling. The only thing that helps here is a watering can, because with its dimensions, the Comfort Plus LW45 doesn't fit under any faucet, and with its filling volume of a considerable ten liters, it would also be too heavy to carry around the apartment safely and spill-free.

The grooved, cuboid design is a characteristic feature of Venta devices.

You can only guess from the photo, but the Comfort Plus LW45 is quite large.

One of the innovations of the "Comfort Plus-Model is the display on the top.

Inside, the famous plate stack rotates continuously, making filter changes superfluous.

The top of the device from the inside. The fan in the center is clearly visible.

The touch display, new to the Comfort Plus model, looks good and responds quickly, but also only offers the expected range of settings: on/off, three fan speeds and sleep. The latter allows you to dim the brightness of the display, but you can't turn it off completely. At least there is still a display of the current air humidity. You can also set the desired target humidity via the. The device then operates in automatic mode and switches off as soon as the target humidity is reached – and starts up when it falls below it.

Because the humidification performance is based on evaporation, the device works more leisurely than atomizers, but the power consumption remains pleasantly low – the device only needs about seven watts. The space requirement is high: The Venta Comfort Plus LW45 was by far the largest humidifier in the entire test – about twice as large as most of the competitors. And as obvious as the device is, it is also inaudible: The operating volume at the highest level was around 51 decibels in the test, which is higher than all other candidates. Even at level two, the noise is still very present; you only get peace and quiet at level one.

Despite the occasional inconvenience, Venta leaves no doubt: the Venta ComfortPlus LW45 is a premium device. If you're not put off by the high purchase price, you'll get a well-designed, high-quality air washer that's fun to use in the long run thanks to its very low follow-up costs.

For occasional users: Beurer LB 55

If you want to save money on the purchase, the Beurer LB 55 is our recommendation. It works according to the evaporation principle, which is hygienically perfect – but hits the electricity costs, because heating water consumes a lot of energy. The LB 55 is therefore only a recommendation for those who use a humidifier only occasionally, but then really want to produce a lot of moisture.

Because the device can, depending on the level 200 milliliters or 400 milliliters of water vapor per hour released into the air, or 4.8 respectively. proud 9.6 liters per day. That's a great deal, but it also comes with a catch: the LB 55 draws 365 watts of power at the highest setting. For comparison: Evaporators, such as our test winner or the two recommendations Venta Comfort Plus LW45 and Beurer LW 220, consume less than 10 watts in the highest setting.

The Beurer LB 55. The operating displays. Efficiency levels.

The water tank of six liters.

The tank sits well in the device.

The lime pad is simply placed in the device.

The lime pad in the device.

A few deposits appeared despite the lime pad.

However, if you let the Beurer LB 55 run at its highest level day and night, you would also blow almost 10 liters of water into the air per day – way too much, even for a room of 50 square meters. But even on the weaker level, the LB 55 still consumes 185 watts. Thus, the price advantage over our test winner is gone after a few months of operation. The Beurer LB 55 is therefore not a real price tip in continuous operation.

Evaporators also have the property of quickly accumulating limescale, as they heat the water. This is especially a problem if you live in a region with very chalky tap water. To counteract calcification, you can use the Beurer with limescale pads, of which 15 are supplied. However, you still have to clean the device depending on the degree of contamination.

Compared to some other vaporizers in the test, which sounded like kettles, the operating volume of the Beurer LB 55 is comfortable. You can only hear a gentle simmer occasionally on the highest setting. But the built-in fan could be quieter.

The device is relatively large, but it also has a large tank that can hold six liters of water – this saves constant refilling. Setup and operation are extremely simple and visually the Beurer is kept very neutral. It can supply a room with up to 50 square meters with humidity. A display, which indicates the possible air humidity, does not exist here also.

The Beurer LB 55 is under the line a favorable equipment with high humidification achievement, which is not suitable due to the high current costs for the continuous operation however.

Solid vaporizer: Levoit VeSync Classic 300S

In general, we don't think much of the atomizer principle – the disadvantages are too great. If you still want an atomizer, the Levoit VeSync Classic 300S is a solid device that can be had for a fair price. It works quietly and can optionally also be controlled via app or voice assistant. However, you should rather not rely on the automatic mode, because the integrated hygrometer is very inaccurate.

Who wants a solid and quiet atomizer, will find it at Levoit. Only the integrated hygrostat should not be relied upon.

At first glance, the Levoit VeSync Classic 300S looks a bit like the Beurer LB 88: both are similar in size and design. With the practice application however the differences become clear. The tank of the Levoit is generously dimensioned with a volume of six liters. It can be removed, but this is not absolutely necessary for refilling, because the VeSync Classic 300S is a toploader and can therefore also be filled on the spot, for example with the help of a watering can.

The tank lid can be removed, which also makes cleaning relatively easy. Only a single conical nozzle is still in the way, so there's a hard-to-reach tight spot between the nozzle and the curved handle for carrying it. On the whole, the accessibility is nevertheless above average, which is an important aspect especially for atomizers.

The Levoit VeSync Classic 300S.

The outlet can be turned in a desired direction in which you want the mist to escape.

Convenient: the lid can be removed and the tank filled on the spot. But it can also be removed.

Also, this way you can easily get into the tank with your hand – good for cleaning!

However, there is one bottleneck. It is located at the top left between the outlet nozzle and a recessed grip.

Like many humidifiers, the Levoit VeSync Classic 300S can also be used as a fragrance diffuser.

A small lamp illuminates the humidifier if desired.

There are even two dimming levels.

Due to the design, there is always some water in the base. The Levoit is not alone in this, however, as is the case with many atomizers.

The display shows the current humidity. Unfortunately, you can't rely on the numbers.

The WLAN symbol to the left shows that the device has network access. The current mode is displayed under the numbers.

The Levoit VeSync Classic 300S in operation.

On the front of the device, there are four touch keys on both sides of an LED display, which react perfectly to inputs and are clearly marked with pictograms. The display is bright and sufficiently large and thus well readable, in the night mode it is switched off. The regular lighting of the humidifier can also be switched off or dimmed in several stages if desired.

If you want, you can also control the VeSync Classic 300S via app. The is also called "VeSync" and works well, but hardly offers more functions than the control panel on the device. You can only adjust the power beyond the three standard levels and program schedules and timers, beyond that only the standard functions can be operated. In addition, the app is a prerequisite for the connection to voice assistants.

When it comes to humidifying, the Levoit VeSync Classic 300S showed an average performance in the test – the device is not a racing rocket like the Beurer LB 88, but Levoit does not have to hide with its humidifier either. average just. It remains pleasantly quiet, depending on the level, our measurements only showed around 33 to 35 decibels – excellent values! The power consumption was, also depending on the level, between 15 and 24 watts and at 1.1 watts in standby – also common values for a cold mist sprayer.

With this overall package, the VeSync Classic 300S stands very neatly, there's only one problem: The built-in hygrometer doesn't work properly. The deviations of the indicated air humidity from our measurements amounted to up to ten percent in changing expression. You could dismiss this as a small thing, but it means that you can't rely on the automatic mode, which is controlled by these very sensors. De facto, this leaves only manual operation and programming routines, if you want to use the smart functions.

The Levoit VeSync Classic 300S doesn't reinvent air purifiers, but it does a lot of things right and performs what's expected of it, as long as the expectations have nothing to do with the hygrostat. Who absolutely wants to have a humidifier with atomizer principle, finds a good device with it. However, if the principle of operation is not important to you, we generally advise you to use an evaporator.

Good& cheap: Amazon Basics humidifier

Who a simple device is enough and who does not want to humidify a hall, can get a solid humidifier for little money. The Amazon Basics is a nebulizer, not the quietest and also not the most powerful humidifier and convinces primarily by its low price, a few goodies has the apparatus nevertheless in petto.

If you don't need many extra features, you can save good money with the Amazon Basics. However, the device is not quiet.

The humidifier from Amazon Basics is available in black or white and with one and a half, two or four liters of tank capacity. Our test sample is a white model with a 4-liter tank, bears the rather bulky model designation AMZHMDSMEU-4.0W and goes for a bargain price over the counter – especially since the device is no longer one of the minis. Despite the small budget, Amazon has added a few extras to its humidifier.

The device includes a compartment for essential oils, which turns the humidifier into a fragrance diffuser, as well as a small lamp that bathes the environment in blue light. If the tank is empty, it changes to a warning red color. Those who are bothered by the light can also switch it off. The device does not have a display – actually good prerequisites for use in the bedroom, if only the background noise were not so high. Because we cannot confirm the "quiet operation" advertised by the online giant: The operating noise is not absurdly loud, but still clearly audible, the gurgling of the water flowing from the tank comes on top of it. Most people will probably not be able to sleep in peace next to it.

The Amazon humidifier, here in white. The device is also available in black.

Two buttons, three LEDs – that's all it takes for operation.

Who would like, can let essential oils also nebulize. The humidifier thus becomes a fragrance diffuser.

Impractical: To fill, the tank must be removed and turned upside down .

. as well as the tank lid are unscrewed.

Pretty: the blue illumination. For those who don't like it, it can also be switched off.

What the humidifier also doesn't have is network connectivity – even though Amazon calls the model a "smart device" on its sales page. This does not mean Smart Home, but rather the control of air humidification with the help of integrated sensors – or in other words: the device has a hygrostat. Unfortunately, the desired target humidity can not be influenced, as is possible with some competitors.

It's a similar story with the built-in timer, which isn't actually a timer at all: In addition to automatic, there are two possible modes of operation, namely 12 hours or 24 hours. The times refer to the duration in which the contents of the four-liter tank should be dispensed. Accordingly, it is not a timer, but power levels – the 12h setting distributes the water twice as fast as the 24-hour counterpart, only then the automatic shutdown comes into force and sends the humidifier to sleep.

For demanding users who want full control over their humidifier, this is certainly too meager. More frugal will be happy about the easy handling, because you can not do much wrong with the Amazon Basics. There are only two buttons, one turns the unit on and when pressed again cycles through the operating modes, the other is the on-off button for the night light. Fortunately, the good handling also applies to the tank, which can be removed from the rest of the device and carried comfortably by means of a handle indentation. Cleaning is easy thanks to the rounded shape without constricted areas. Our only criticism is the outlet nozzle: it can be turned, but only with a certain resistance. Because it is also difficult to grasp, it is too fiddly for our taste.

The Amazon Basics humidifier does its work steadily, but slowly – impatient users should rather choose a stronger model. The power consumption remains moderate at less than 15 watts.

We recommend the Amazon Basics humidifier to anyone who is looking for a simple device without a lot of bells and whistles and wants to spend as little money as possible on it. All too noise-sensitive contemporaries should, however, rather take distance.

Also tested

Meaco Deluxe 202

The Meaco Deluxe 202 is a relatively small atomizer model whose humidification performance is impressive – especially for its small size. It can deliver cold and warm mist and has a timer as well as an automatic mode. On top of that, it can be used as an air purifier thanks to HEPA and carbon filters and also houses a UV lamp to kill germs.

The part that contains the water tank can be removed for filling, which we welcome. We weren't entirely satisfied with the rest of the handling, though: The control panel with touch buttons is easy to understand, but it's only just above the ground, so you always have to bend down a long way. To make the desired settings, you have to press the corresponding button several times in succession, whereby the value always increases until it starts again at the lowest one. So scrolling back to "front" is not provided – that's not a downfall, but would have been more convenient to resolve.

The Meaco Deluxe 202 is built relatively high. If you want to move it, it is better to hold it by the lower part.

If you want to move the humidifier, you should be careful: Due to the high center of gravity and the low-lying connection between the two, you can easily separate the upper part from the lower part when moving it around. Unfortunately, there is always some water in the lower part, which can then quickly end up on the floor.

None of these drawbacks are dramatic, and you definitely get used to the quirks over time. However, since the Meaco Deluxe 202 is not exactly inexpensive and competing models do not have such weaknesses, we refrain from recommending it.

Boneco H300 Hybrid

The Boneco H300 Hybrid shares some features with the Venta Comfort Plus LW45. Both work on the evaporator principle. Both use rotating rollers in a water basin – or rather a water tank. in the case of the Boneco only one. Both offer an app. And both are quite expensive. Differences can be found mainly in the design and the fact that the H300 Hybrid, as its name suggests, serves another purpose besides humidification: Air purification. However, it is necessary to change the filter from time to time, and the manufacturer charges a lot for the replacement. If you want, you can also use only one of the two modes and switch off the other one.

The Boneco H300 Hybrid works on the same principle as the Venta Comfort Plus LW45, but is built on edge and works with only one roller.

The app works well, is pretty to look at and responds quickly. Our test device was found right away. Connected to the smartphone via Bluetooth without any problems. In addition to the expected control options for the device, it also includes some tutorial videos for startup and cleaning, as well as the complete instructions, and it also informs you when the next filter change is due.

If you do not use the app control, the only control element is a large rotary switch, which can also be pressed like a button. This is a bit too tight for the range of functions offered, the app is clearly the better option here.

Overall, we liked the H300 Hybrid a lot. Those who also want to clean the air anyway will find it a solid alternative to the Venta Comfort Plus LW45. The H300 has a smaller footprint, but it is higher. Because the touch display of the Venta allows a somewhat more pleasant operation and both devices are located in similarly high price regions, we see the Venta at least as a pure humidifier but in the advantage.

Philips HU4803

The Philips HU4803 is also a good unit that brings the humidity up quickly. However, it has a bit less power than its two big brothers. Is thus only suitable for rooms up to 25 square meters. However, if that's enough for you, you can also buy this one without worrying. We especially like the chic design of this model. Here, too, the filters have to be replaced after a while.

Philips AC2729

The Philips AC2729 is a large, heavy unit, but easy to move around thanks to built-in casters. Unfortunately, it has a rather small tank of only three liters capacity, so you often have to refill it. This humidifier with the evaporation method additionally cleans the air. Thanks to WLAN equipment, you can also operate it via app – which unfortunately shows ads. Connecting to the router only works with the 2.4 gigahertz frequency. If you use 5 gigahertz or even the new WiFi 6, you have to switch beforehand.

Via the app, you can make many settings, from baby mode to allergy mode to 2-in-1 mode, in which the air is humidified and purified at the same time – ideal for allergy sufferers.

The Philips AC2729 can humidify and clean rooms up to 65 square meters. If you have such a large living room, congratulations! Then this is the right humidifier for you. For everyone else, the device is oversized – and far too expensive.

Philips HU4813

The Philips HU4813 is the predecessor of our current test winner HU4814 and was previously our favorite. The device is still available, but is usually more expensive to have than the new model. Technically, nothing has changed except for a slightly modified filter, so if you see the predecessor somewhere cheap on sale, you can grab it without hesitation. However, the filters must be purchased here.

Venta Original LW25

The Venta Original LW25 is, like the Beurer LW 220, an evaporation device with air washing. Unfortunately, the Venta's display light cannot be dimmed, which is sometimes a bit inconvenient in the dark bedroom. On a positive note, however, the Venta delivers better humidification performance than the Philips HU4814 and also than the Beurer LW 220.

Unfortunately, some of the features have been skimped on. The display cannot be dimmed, which means that the dark bedroom, for example, is still relatively brightly lit. We would appreciate it if you could turn it off completely. So only masking helps. Also, there is no water level indicator on the Venta. The fan's auto-stop at least signals when the water level is too low.

Unlike the "Comfort Plus" offshoot, a hygrometer and timer are missing here, as well as the display. So it's worth considering how important the equipment differences are to you. If the price is not too high for you, with the device from Venta you get a great humidifier that is easy to use and humidifies hygienically.

Beurer LW 220

The Beurer LW 220 with additional air wash is a solid alternative to our test winner, if you are willing to pay more. It convinces above all with a higher humidification performance. In addition, the water tank is larger in the tested, medium-sized variant for 40-square-meter rooms. It is more convenient, because you have to refill water less often. A plus is also that it is suitable for bedrooms at the lowest ventilation level. Small deficit: the indicator light dims down after operation, but still lights up dark rooms a bit.

Instead of a porous, soft cylinder, there are interconnected plastic plates inside the humidifier. They are stable. Very durable. Its efficient cleaning is easily done in the dishwasher.

However, the advertised air purification has a catch: The Beurer LW 220 can humidify rooms up to 40 square meters, but only clean up to 20 square meters. Unfortunately, Beurer omits the room size information for cleaning in the user manual and device description. However, when asked, the company admitted that it would supplement this information in the future.

For allergy sufferers, the air purification can still be a relief, at least for smaller rooms. For the average consumer, however, the air purification has no significant advantage. However, the Beurer LW 220 does not have a hygrostat. With it also no automatic shut-off function when a certain humidity target value is reached. It also lacks a timer.

Xiaomi Mi Smart Antibacterial Humidifier

Humidifier test 2022 which one is the best one

Xiaomi's Mi Smart Antibacterial Humidifier lacked a bit of highlights for us. In its garb of white plastic and the shape of a cylinder, the device reminded us of a cosmetics garbage can. The manufacturer has dispensed with a display, the unadorned look is only broken up by a single button on the front of the device, which is used for the majority of the operation is handled.

Somewhat hidden on the back, the humidifier has another button, but this is limited to the WLAN connection of the device. That may, once set up, henceforth be controlled with the proven Xiaomi Home App. In addition, the key tones can be disabled here, which we very much welcome, and thresholds can be set for the automatic mode. The app goes hand in hand with support for the Alexa and Google Home voice assistants, but you have to create an account to use it.

The tank is removable and has a removable lid, plus you don't encounter any major angles or obstacles inside, so filling and cleaning is quick and easy. The thin plastic lid doesn't look too high-quality and has grooves on the sides to screw it in, which attach it to the body. Because the lid is flat and has no protrusion, closing it turns out to be a bit fiddly, but once you've managed it, it also holds well.

The Mi Smart Antibacterial Humidifier is a cold mist sprayer, it can't heat up the water in the process. Instead, a UV lamp is supposed to provide increased hygiene, which we consider more of a marketing gimmick than a real added value due to the low output.

Humidification is faster than average, the emitted jet of atomized water really shoots upwards – vertically at a 90-degree angle. This is unusual, as most competitors emit it at an oblique angle. However, we did not have any problems with water settling on the outside of the device, the distribution works just as well as the heating. Medium as with other atomizer devices as well. Turning the outlet opening is also not possible with the Xiaomi, but it probably wouldn't make much sense due to the vertical dispensing.

The Mi Smart Antibacterial Humidifier's power consumption is in the midfield: Depending on the level, it consumes between 17.7 and 25.6 watts, and the device consumes 1.1 watts in standby. The operating volume of 33.2 decibels is very good. The values come from our own measurements, Xiaomi itself officially states somewhat higher ones.

All in all, the Xiaomi Mi Smart Antibacterial Humidifier is a solid air purifier without major flaws, but also without major highlights. Those who value app control won't go wrong with a purchase. If you're hoping for a desirable piece of technology with outstanding performance data, a home design statement, or even an aha moment, however, you'd better look elsewhere.

Beurer LB 88

We were amazed when we tested the Beurer LB 88, because the humidifier can hardly be beaten in terms of speed. It literally presses the water into the air, our hygrometer literally jumped from measuring point to measuring point. With the LB 88, you can choose to humidify cold or warm – the heat promises more hygiene, but in return the LB 88 also allows itself a very deep gulp from the socket: our meter showed values between 273 and 279 watts at full power. For continuous operation, that's way too much, but that also applies to the enormous humidification performance – at full power, the LB 88 is the device of choice for those in a hurry, not so much for continuous users. The heating can be lowered in three steps or switched off completely, then the LB 88 only consumes an average of 22 watts. The intensity of humidification can either be controlled by a rotary switch on the front of the unit or left to automatic mode, in which case a hygrostat takes care of it.

If you forgo the heating, the Beurer is pleasantly quiet and you hear very little from it, apart from the occasional gurgle from running water. However, it gets considerably louder when you turn on the heat function – then the device almost sounds like a kettle. In our measurements, the volume was around 36 decibels in normal operation. At around 44 decibels with full heating – that's quite a bit.

The fact that the Beurer LB 88 didn't quite make it to the recommendation is due to its tank. The is removable and stands solidly on the body, but is very cumbersome to clean due to its internal structure – also because it is an atomizer, this is no small matter. Also, to fill it, you have to turn it upside down, which requires unscrewing a lid. In online reviews, it is reported several times that the LB 88 begins to leak after some time – we can only check this in a long-term test. Maybe the fuel cap wasn't screwed on properly or the seals are gradually losing their effectiveness, both would be possible. The high noise level and the power consumption when using the heating function are also aspects that make sure that only a few people would use it very often – but those who value it can take a look.

Elechomes SH8820

We liked the Elechomes SH8820 in many aspects. The ultrasonic nebulizer can nebulize warm or cold. Offers an enormous humidification capacity. The design is simple and harmonious. Heat and humidity can be set separately in several stages. In addition, the device has a sleep mode and a timer. Operating times can't be programmed, though. The 5.5 liter water tank can be removed from the unit and has a fold-out handle, so refilling the water is quick and spill-free. Unfortunately, the manufacturer didn't think that far ahead when it came to cleaning: While the lion's share is exemplary, there's a narrow area of about one centimeter at one of the edges, which can only be reached awkwardly with a narrow brush – and not at all with a bare hand.

The fact that the Elechomes SH8820 remains without a recommendation is mainly due to other reasons: Replacement filters are hard to come by and with consistently over 270 watts, the power consumption isn't without its problems either. A not to be underestimated flaw are also the shrill, enormously loud key tones, which can neither be turned down, nor – in contrast to the display – switched off.

Beurer LB 45

What looks like a stylish, modern kettle is actually the ultrasonic atomizer Beurer LB 45. The device is relatively small and needs only a narrow footprint, but it stretches a bit more in the height. We liked this because it makes the humidifier easy to store and its outlet is farther from the floor, so the mist can spread around the room better. Similarly simple as the design is the operation. You can do practically nothing wrong here, because there are no other controls except for the dial for setting the fog intensity, which also doubles as the on/off switch. Conversely, this also means that the LB 45 has to do without any comfort functions at all. Timer? Does not exist. Programming? Missing. Hygrometer? So, please! Not even the lighting, which cloaks the device in a blue glow and changes to a warning red when the water level is low, can be switched off or even dimmed – it simply shines at full power both day and night, which disqualifies the LB 45 for use in the bedroom at least.

That's a pity, because with its operating volume of under 40 decibels throughout, it would have been very well suited for this purpose. The only annoying thing is the sporadic gurgling sound when water flows out of the tank, which is normal for this design – often called a "birdbath". The humidification performance was very continuous, but overall manageable. For the called price of at present approximately 55 euro and for the exclusive employment in small areas one can think about a purchase, the first choice under the air humidifiers is not the LB 45 however.

Stadler Form Oskar Little O-101

The Stadler Form Oskar Little O-101 is the little brother of the Oskar: It is smaller and offers a somewhat smaller variety of functions, but retains the qualities of the prototype in the essential areas – just what you would expect from a mini version. Design-wise, both devices look confusingly similar except for their size. The built-in hygrostat has fallen by the wayside. The warning indicator for the filter change. In addition, one must be content with one instead of two filter mats. Unfortunately, the Little also retains the negative characteristics of the larger Oskar: The humidity in the room rises relatively slowly. The operating noise is a bit too loud – interestingly, the Oskar Little booms even a tad louder.

The power consumption remains pleasantly low, but not so the purchase price, which is a bit too high for such a small humidifier with reduced functionality.

Stadler Form Oskar O-020

The Stadler Form Oskar O-020 catches the eye with its simple, modern design. Because the humidifying cube from Swiss development and Chinese production carries all operating elements on the top, the sides of the evaporator, which is available in three colors, are almost completely blank and are only interrupted by the separating edge between the two halves of the housing as well as by an access shaft. This makes it easy to refill with water using a watering can, or alternatively the entire bottom can be placed under a water tap. In addition to the buttons, there are also a number of LEDs on the top that provide information about the set fan speed, the achieved humidity, used filters or low water level. Since the lights are located under a grille, they are usually not disturbing, if necessary, they can also be dimmed.

Unfortunately, the Oskar has no timer. Independent shutdown works due to the integrated hygrostat when the desired humidity is reached or thanks to an automatic shutdown when the tank is empty, but still.

The power consumption of about 13 watts remains within limits, but the humidification performance is also only average. The operating volume is still okay, but could have been a bit lower.

The bottom line is that we find the Oskar too expensive, as it doesn't have much to offer beyond the nice design that cheaper models can't do similarly well. In addition, the filter mats are an ongoing cost factor that should not be underestimated – especially if you live in an area with highly calcareous water, which significantly accelerates filter wear and tear.

Beurer LB 37

The Beurer LB 37 has only one on button – that's it. It is not particularly beautiful, but discreetly designed. The humidification performance was not particularly high. The small device can't cope with more than 20 square meters either. We do not find the price justified here. We would therefore also advise one of our recommendations here instead.

Medisana UHW

The Medisana UHW ultrasonic vaporizer did very well in our test in the speed category. It humidified the air the fastest. Achieved a humidity value of 60 percent. Negative is that the moisture settles on the floor and furniture over time. So lime deposits everywhere, sensitive furniture can also be damaged. For occasional humidification, the Medisana is a good, inexpensive solution. However, evaporators are better suited for continuous use.

Elechomes ES5001

Humidifier test 2022 which one is the best

I wonder if the product designers at Elechomes also use the ES5001 privately at home? We have some doubts about this, because the user-friendliness leaves a lot to be desired. The tank takes up the lion's share of the height of the upright built humidifier and holds only reasonably on the small base, which led in the test to the fact that we tipped the tank twice accidentally and its contents poured over the floor. The entire device is round, but the direction in which you insert the tank has to be exactly right – this requires some fiddling around at first. If you try to put it down incorrectly and don't hit the protrusions in the base, the tank tips over. We also find piquant the choice to place the power connector at the bottom of the device, precisely the place that is most quickly in a pool and where you do not want to find access to electronic parts so much.

Visually, the ES5001 is plain, only the blue illumination looks nice and adds some shine to the rather boringly designed white plastic case. If you want, you can switch it off, but sleeping is hardly possible in the vicinity: The operating noise is high-frequency, unpleasant and accompanied by continuous gurgling due to water running down the line. Humidification performance is below average.

If you like the look and don't have to pay attention to every cent, you'll find an alternative at Xiaomi, which is similar to Elechome's ES5001 in many aspects, but implements everything a bit better.

Carlo Milano LBF-450

The Carlo Milano LBF-450 is an ultrasonic atomizer that offers cold and warm mist. The device is visually appealing and relatively small, so it should not stand out negatively in most homes. The display with the control buttons has been moved to the side, which probably looks nicer than on the front, but does the operation a bit of a disservice. The tank holds four liters of water, which is relatively small, but it can be removed from the device. This is much easier on the nerves than pouring it directly into the machine, as is the case with some of its competitors.

The average volume in our measurements was around 43 decibels, which would be fine in itself. However, the LBF-450 whirs and gurgles continuously in a way that is hard to get used to – you always notice the noise. And they are annoying!

The power consumption in the test was about 30 watts for cold fog and 98 watts for warm fog. That's a bit more than other devices need, but far from the end of the line and also still below the manufacturer's specifications of 35 resp. 105 watts. We were not convinced by the workmanship of the Carlo Milano: The control buttons feel cheap. Part of the granulate had already leaked out of the filter when the new device was unpacked.

Much worse and an absolute dealbreaker, however, is the atomization behavior: At full power, mist settles on the surface of the housing practically immediately after starting, and a few minutes later a real puddle already forms around the device – and we don't mean a small puddle, but really a full-fledged pool. This can easily ruin a wooden floor. The problem occurred in each of our measurements, whether hot or cold mist made no difference. Because of this serious faux pas, we must clearly advise against the Carlo Milano LBF-450.

How we tested

The test took place in an editorial room with a relatively large amount of wood furnishings (furniture, parquet). The footprint was about 29 square meters with a room volume of 71.7 cubic meters. The test was conducted in winter, at a room temperature of 20 degrees and a prevailing relative humidity of around 34 percent without humidification in it. We compared the humidification with a hygrometer.

In addition to the humidification performance, the hygienic conditions, cleaning, handling, equipment and workmanship were also evaluated. Finally, we put the result in relation to the price. The test devices cost between around 20 and 300 euros.

The most important questions

What are the types of humidifiers?

There are three basic types of humidifiers: evaporators, ultrasonic atomizers and vaporizers. All have their advantages and disadvantages. Evaporators do not pollute the air with germs and can also humidify large rooms, but this takes a long time and you always hear a fan noise. The devices are also relatively expensive. Atomizers can be had very cheaply. Quickly bring a lot of moisture into the room. However, they can spread germs if not properly sanitized. Causing limescale deposits in hard water. Evaporators heat water to steam – that's on the electricity bill.

What are the advantages of humidifiers??

Dry air, especially from heating, dries out the mucous membranes and can irritate the eyes and respiratory tract and weaken the immune system. Humidifiers counteract dryness and mitigate or. prevent such symptoms.

What are the disadvantages of humidifiers?

With irregular cleaning, germs and spores can settle and multiply in humidifiers, and then the devices disperse them into the indoor air. Keeping the equipment clean and, if necessary, replacing the water in the tank is therefore indispensable. In addition, models that work on the evaporator or atomizer principle can also provide too much humidity, which can cause wood in particular to swell and thus be damaged. At the same time the risk of mold growth increases. On top of that, with vaporizers, there is a risk of burns due to the hot vapor.

How high should the humidity be?

The optimal value for humidity in living spaces is about 40 to 60 percent.

What is the difference between a hygrometer and a hygrostat??

A hygrometer is simply a measuring instrument that measures the relative humidity of the air in the environment. A hygrostat also includes a hygrometer, but can control other devices as well. This makes hygrostats particularly suitable for humidifiers: the hygrostat only switches on the humidifier when the humidity falls below a predefined value. If the measured humidity value is in the desired range, it switches the device off again.

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