Black & Decker Table Top HEPAFresh&trade; HEPA Filter for Air Purifier Model BXAP041 Filter Model BXFLTX Multi-layer filter captures allergens and odors and the all-in-one design is easy to replace HEPAFresh layer captures up to 99% of airborne particles including allergens such as dust mites, mold spores, pollens and pet dander Carbon layer reduces common household odors from pets, smoking and cooking Pre-filter captures larger particles and helps extend the life of the filter Multi-layer filter captures allergens and odors and the all-in-one design is easy to replace. HEPAFresh layer captures up to 99% of airborne particles including allergens such as dust mites, mold spores, pollens and pet dander Carbon layer reduces common household odors from pets, smoking and cooking Pre-filter captures larger particles and helps extend the life of the filter