A membrane vibrating in the ultrasonic range transforms water into a fine mist, which is emitted into the room by means of a fan. As this mist is cold, there is no risk of burning. The limescale filter cartridge filters limescale out of the water so that the mist that comes out is fresh, clean and limescale-free. Ultrasonic devices also require very little electricity.
The water is heated to boiling point by a heating element and thus produces water vapour. In contrast to evaporators and ultrasonic devices, vaporisers require a comparatively large amount of electricity. On the other hand, they are considered to be enormously powerful and ensure optimal distribution in the room. In addition, vaporisers produce completely germ-free steam even without accessories.