HAPF300AHD Remover True HEPA Filter compatible with Holmes Aer1Series Air Purifier, HAPF30AT True HEPA Allergen Remover, Parts HAPF300AH-U4R & HAP242-NUC (4 True HEPA + 8 Pre Filter)

Replacement Filters compatible with Holmes aer1 Air Purifier is a highly efficient filtration media that removes microscopic particles as small as 0.3 microns and operates quietly to remove up to 99.97% of airborne allergens such as pollen, dust, mld, pet dander, and smoke. This effective Allergen Air Purifier Filter made of cotton removes unpleasant household odors to help maximize comfort and freshness so that you can live in harmony with nature for a serene home environment.99.97 percent EFFICIENT AT REMOVING ALLERGENS: True HEPA Air Filter is 99.97 percent efficient in removing airborne allergens as small as 0.3 micronsPackage included: 4 True HEPA + 8 Pre Filter