Fellowes AeraMax Pro AM2 Hybrid Air Purifier Filter - Contains 1 FilterAeraMax Pro AM2 Hybrid Air Purifier Filter Contains 1 Filter 2 IN 1 FILTRATION Includes half True HEPA and half Activated Carbon Filters in one for enhanced air cleaning power EFFECTIVE FILTRATION True HEPA filter captures 99. 97% of airborne particles as small as 0. 3 microns, including pollen, ragweed and other allergens, viruses, germs, dust mites, mould spores, pet dander and cigarette smoke REMOVES ODOURS Activated carbon filter reduces odours