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 you can leave the unit to run for a certain period before the device switches off. Features: Energy saving 100 W motor 740 m3/h air filter performance Ultra quiet operation with max. 60 dB(A) noise level and remote control for practical use Air filtration system for removing fine dust particles from workshop atmosphere. Ideal for everyday use Three different settings adapt to specific workshop environment Timer for run-on and automatic switch-off Suitable for workspaces up to 400 m2 Convenient space saving under ceilin