Activated carbon filters Type TKV AK improve the air quality of interiors. TKV AK filters reduce health complaints associated with the Sick Building Syndrome and protect sensitive products, processes, systems, by eliminating also disturbing and unpleasant odors and harmful gases (see Table corrosive gas). They come in the intake, exhaust and recirculating air filtration demands on the cleanroom quality used. Such as Laboratories, hospitals, print shops, large kitchens, museums, hotels, banks, airports, offices. In industrial processes such as chemical, pharmaceutical, electronics, food, microelectronics, optics, etc. in compact air conditioning equipment as well as pre-filters of HEPA.