True HEPA Filter captures 99.97% of particles and impurities as small as 0.3 microns, including mold spores, pollen, dust mites, most airborne microbes, allergens and cigarette smoke Built-in AeraSafeAntimicrobial treatment protects from the growth of odour causing bacteria, mildew and fungi Compatible with Fellowes® AeraMaxDX5 Air Purifier Replace the True HEPA filter approximately every 12 months to ensure that the Air Purifier continues to operate optimally - 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, mold spores, pet dander and cigarette smoke- AeraSafeantimicrobial treatment provides built-in protection from the growth of odor causing bacteria, mildew, and fungi on the True HEPA filter- Compatible with Fellowes® AeraMax90, 100 and DX5 Air Purifiers- With normal usage, it is recommended that you change your filter every 12 months to keep your air purifier running