Dehumidifier
Dehumidifiers are used to dehumidify rooms and reduce excessively humid air to an optimum level of between 40 % and 60 % humidity. This supports your health, helps asthmatics breathe better, helps prevent mould growth and allows laundry to dry faster. Breathe easy and find the right dehumidifier for you now.
Dehumidifier accessories
What a dehumidifier can do for you
Reduces humidity: A dehumidifier helps to remove excess moisture from the air, resulting in a more comfortable and healthier indoor climate.
Helps prevent mould growth: By controlling and reducing humidity, the risk of mould growth in living spaces is reduced, contributing to a healthier environment.
Protects furniture and other objects: A dehumidifier can help prevent moisture damage to furniture, clothes and other objects in your home.
Improves air quality: By reducing humidity, electric dehumidifiers can help reduce allergens such as dust mites, mould spores and mildew, which is particularly beneficial for allergy and asthma sufferers.
Protects against odours: By dehumidifying the room air, dehumidifiers can help to reduce unpleasant odours that are encouraged by moisture.
Improves sleep quality: in areas with high humidity, a dehumidifier in the bedroom contributes to a more comfortable and healthier sleeping environment, which leads to improved sleep quality.
Dehumidifies cellars, pantries and laundry drying rooms: A dehumidifier in the cellar or laundry room helps to control moisture to prevent mould and odours.
Dries laundry faster: A dehumidifier speeds up laundry drying, especially in humid climates or in the rain.
The world of dehumidification
Want to find out more? Or do you want to find out more about how a dehumidifier can help you achieve better indoor air or how dehumidifiers keep your cellar climate ideal?
On our information page about dehumidifying air, we explain the causes and effects of excessively humid indoor air. We show you how a dehumidifier can help you prevent mould growth or dry your laundry more quickly.
Buying a dehumidifier: what do you need to consider?
The size of the room is crucial when choosing the right dehumidifier. The larger the room, the higher the dehumidification capacity should be. It is important to consider the room volume (area in square meters x room height). As a rule, manufacturers assume a room height of 2.5 meters for their room size recommendation.
Depending on where (laundry room, cellar, living room) the dehumidifier is used, other criteria are important. If you are considering drying laundry, a dehumidifier with a swing function is suitable. For water damage, an industrial construction dryer is more suitable. A quiet dehumidifier with a night mode is ideal for dehumidifying bedrooms or living rooms. Mobile dehumidifiers are easy to move around on castors.
If the humidity is very high, the dehumidifier should remain switched on all the time if possible. The energy consumption can be controlled if the appliance has a hygrostat. The hygrostat can be used to set the desired target humidity. As soon as this is reached, the appliance switches off automatically.
Depending on the model and intended use, the water collection volume is also decisive. Commercially available dehumidifiers for private use usually have a dehumidification capacity of max. 20 liters per 24 hours and a water tank capacity of 4–5 liters. Ideally, the dehumidifier has a connection option for a hose to remove the condensation water in drainage mode.
Dehumidifiers with granulate are cheaper to buy, but the ongoing purchase of desiccant must be factored into the overall costs. Compressor dehumidifiers are initially more expensive, as quality has its price. For a dehumidifier to function reliably for several years, it must be equipped with high-quality components. These components are reflected in the price.
The different dehumidifier systems
Condensation/compression dryer
A surface in the appliance is cooled by means of a compressor. The warm, humid air is channelled over this surface. The excess water vapour in the air remains on the surface in the form of water droplets and flows into a collection container or, optionally, directly into a drain using a drainage hose. These devices perform best the warmer and more humid the air is. Stadler Form dehumidifiers work according to this principle.
Peltier dehumidifier
Similar to compression dryers, the air is cooled via a cold surface and thus dehumidified. As this is done electrically via the Peltier element, this type of dryer is not ideal for entire homes as the output is rather low.
Absorption dryer
Water-binding material removes the water from the humid air. The cooler the temperatures, the better the efficiency. These appliances are therefore particularly suitable for cellars and at low temperatures. With these dehumidifiers, the dehumidification process not only produces drier air, but also warmer air – which additionally supports dehumidification, as warmer air can absorb more moisture.
Desiccant dryer
A passive device that works without electricity. The effect of water binding by special salts is utilised. However, the efficiency is very low and therefore not suitable for large drying tasks. Another disadvantage is that the granulate has to be refilled regularly, resulting in follow-up costs.
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