Humidifier test recommendations 05 22

Asthmatics and allergy sufferers will feel a noticeable improvement in their symptoms when the air is more humid and dust-free. The entire family benefits from a humidifier, especially during the heating season. The humid room air prevents colds. Facilitates breathing in case of already existing infections.

What is the energy consumption of a humidifier?

In general, it can be said that devices with evaporators have the highest energy consumption. Atomizers and evaporators have hardly any impact on electricity costs.

When using a humidifier continuously, you have to reckon with daily additional costs of one to two euros. The actual consumption depends on the operating time and the selected power level.

What role does water hardness play in a humidifier??

If the water is very hard and contains lime, humidifiers with vaporizers and ultrasound-based nebulizers are less suitable. This is especially true if water from the decalcification system is used.

The added salt changes the boiling point of the water. This may cause the evaporator to deform.

Nebulizers atomize the salt, resulting in a white coating on surrounding furniture and surfaces. Those who have hard water should opt for an evaporator.

Where should the humidifier be placed?

Condensation precipitation often forms due to the escaping mist. Therefore, humidifiers should not be placed too close to wood or seating areas.

Make sure that the air can circulate well and that the device is not placed directly against the wall. Otherwise it could lead to the formation of mold.

You will probably not need a humidifier in the kitchen or bathroom. Showering, bathing and cooking will increase the humidity of the air by itself.

Living rooms and bedrooms are suitable for the use of the devices. It can also be recommended to place the devices in the children's or baby's room.

Children and pets should not have access to the humidifiers for safety reasons.

A distance of about one meter should be maintained from furniture, floors, wallpaper and other objects in the room. By placing it in the middle of the room, you will achieve optimal air circulation.

What does a humidifier cost?

The price of a humidifier is largely determined by its size and mode of operation. In general, the price range for a humidifier can be set between 15 and 80 euros. Most devices cost between 30 and 50 euros, but there are both cheaper and more expensive variants.

Before buying should be determined where the device will be placed. At the place of installation should be available the necessary space.

Note also that the devices should be placed at a certain distance from furniture and walls, so that the condensate is not deposited on the surfaces.

Room size

The decisive question is: How large is the area that is to be humidified with the devices. There are great differences between the individual models in this respect.

Some models can only humidify premises with a size of about 20 square meters. Still other models manage to more than double the size of the room.

The number of square meters should be indicated on the packaging. The room size also affects the price of the humidifier. Under certain circumstances, it may even be more profitable to install two smaller devices.


You will notice how important the background noise of the devices can become at the latest when the humidifier is set up in the children's room or in the bedroom. When first used, a humidifier usually always sounds quiet.

In living rooms, a humidifier is usually no problem even in full operation. In the bedroom, on the other hand, even quiet but nevertheless constant and monotonous sounds can deprive you of sleep.

If the humidifier is to be set up in the bedroom, only devices that manage with a noise level of less than 40 decibels are recommended. The lowest noise pollution comes from evaporators and devices that work with ultrasound.

Steam humidifiers, on the other hand, are rather unsuitable for bedrooms and children's rooms and should therefore only be used in living rooms or work areas.

Operating time

Also the operating time plays a role. For many devices, the duration of use is limited to a few hours. Often you can choose between one hour, three hours or six hours of use.

For the humidification of living rooms this is quite practical.

But if you want to use the humidifier in the bedroom and operate it all night, you should choose devices that can be operated for at least ten hours and have an automatic shut-off function as soon as the water in the tank is used up.

Care and cleaning effort

The operation of humidifiers usually also involves the risk of spreading bacteria and germs. In addition, there is the possibility of calcification, which you must also prevent when caring for the devices.

The amount of cleaning required varies from one appliance to another. In the case of an evaporator, it should be sufficient to occasionally change the flow and renew the water.

In the case of steam air devices, regular descaling and disinfection is advisable. The filter is washed under cold water for this purpose. Here, too, it is occasionally necessary to replace the filter.

The water tank of the steam humidifier is filled with vinegar. Vinegar should be left to soak in for some time to reliably remove limescale deposits. The water tank is then thoroughly scrubbed out and rinsed again.

Trivia: Interesting facts about humidifiers

Humidifiers can have a positive influence on the indoor climate. This is not only helpful in the cold season, when dry heating air causes the humidity to drop. High-quality humidifiers can also purify indoor air. Are therefore an option especially for allergy sufferers.

In the following we would like to answer further questions, which can convince you of the necessity of the devices and help with the selection of the suitable air humidifier.

How dry air develops?

The air is probably driest in winter, when the heating is running at full blast around the clock. Even airing does not help much. The cold air from outside warms up and the humidity drops, because warm air can absorb more moisture than cold air.

Imagine the temperatures outside are around freezing point.

The cold air can absorb four grams of water per cubic meter. If this air is heated to room temperature, the moisture absorption capacity increases to 20 grams.

This means that the humidity outside can easily reach 70 percent, while the humidity in the room barely reaches 20 percent.

So even by airing in winter rather a deficit of humidity arises. This is where humidifiers come into play.

How do I know that I need a humidifier??

The ideal values are 40 to 60 percent. It is not uncommon for the humidity to be too high, for example in kitchens or bathrooms. Therefore, it is advisable to ventilate regularly after cooking and bathing.

If the humidity is too dry and you are sitting in an overheated room in winter, for example, this can result in burning eyes, a scratchy throat or dry lips and mucous membranes.

What oil can I use for the humidifier?

The room climate can be significantly improved if scented oil is added to the humidifiers. A few drops are already enough. The oil spreads throughout the room after the device is put into operation and provides a pleasant scent.

Synthetic oils are not recommended, as they often not only gum up the equipment, but can also be harmful to health and cause headaches or watery eyes.

An intolerance of fragrances manifests itself through the following complaints:

– headaches – coughing – circulatory problems

Especially allergy sufferers or asthmatics should dose fragrance oils sparingly and test the compatibility first.

Essential oils can have different effects on body and mind. The most common essential oils for humidifiers are listed in the following overview with their mode of action.

For use in humidifiers, water-soluble oils should preferably be used. Otherwise, there is a risk of sticking in the device and it will no longer work as usual.

Alternatives to the humidifier

There are some measures, which also contribute to an increase in the humidity of the air in premises. These can be done, independently of the purchase of a humidifier, also complementary.

Also an air purifier can be a good alternative for the time being to avoid bad smells or air.

In the short term, you can increase the humidity by spreading damp towels over the radiator. Room fountains are not only visually an eye-catcher. They also calm the nerves. Increase the humidity. You can achieve the same by setting up an aquarium.

After showering, the humidity in the bathroom is correspondingly high. If you open the door, the humidity can escape and penetrate into the other rooms as well.

Indoor plants are not only a popular room decoration. The plants evaporate the absorbed water through their leaves. This will release moisture into the environment.

You can increase this effect by giving the plants a frequent shower from the plant sprayer.

Suitable indoor plants are indoor bamboo, papyrus or indoor lime tree. If the plants are watered regularly, three green plants are already enough in an average-sized room to noticeably increase the air humidity.

In the bedroom, plants that absorb CO2 mainly at night are particularly suitable. These include real aloe, various cacti and orchids. So you can use these in addition to the humidifier against pollutants in the air.


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