The special thing about air scrubbers is the double effect: the air is cleaned and at the same time the humidity in the house is maintained by means of the evaporator technique. A fan sucks the air along a damp filter and filters out dust, pollen and odors. The air scrubber then blows clean, humid air into the room. With a scrubber dry air in the house is finally a thing of the past, the air will feel wonderfully fresh after a thunderstorm. This type of humidifier is ideal for people suffering from, for example, a pollen allergy.