•Air cleaning using a three-layered filter system (prefilter + activated carbon filter + HEPA filter): domestic dust, animal hair, odours, pollen, various bacteria and viruses as well as harmful gases are filtered from the air•Tests show that the three-layered filter system with HEPA H13 filter filters out up to 95% of particles ≥ 0.02 µm in size (IUTA test in April 2020 according to DIN 71460-1)*•99.95% of particles ≥ 0.3 µm in size are eliminated.•PM 2.5 Sensor – recognises fine dust with particle sizes of up to 2.5 µm•Additional air cleaning using an optional ultraviolet light•Timer function•With automatic function: device is controlled based on the level of fine dust pollution•3 output levels•Quiet operation•Safety automatic switch-off function•Suitable for rooms of 18 m2 – 54 m2