Heavy Duty Air Filter HDA-14 filters hazardous suspended particles up to a size of 1 µm and thus maintains a good and healthy indoor climate in the workplace and the office. The additional pre-filter filters dustas well as finest dust particles and aerosols from the air. The air filter can be applied by a remote control from up to 10 m and can therefore be installed under the ceiling to save space. It has 3 different speeds and comes with a programmable timer function so...