Filters & Accessories Filters & Accessories Air Purifier FiltersHumidifier Filters Filter Letter AA/A+BCDEFGHJKNRSTUZ Filtration Type HEPAHEPA TypeOdor ReducingPre-Filter Need DustPet Dander/Pet OdorPollenSmoke/Wildfires Pack Size 1-Pack2-Pack3-Pack4-Pack6-PackValue PackYear Supply Kit Smoke Reducing S Filter for HEPA Console Air Purifiers, HRF-SS1Pet Odor Reducing S Filter for HEPA Console Air Purifiers, HRF-SP1Smoke Reducing T Filter for HEPA Tower Air Purifiers, HRFTS1Pet Odor Reducing T Filter for HEPA Tower Air Purifiers, HRFTP1Kitchen Odor Reducing T Filter for HEPA Tower Air Purifiers, HRFTK1Home Renovation Odor Reducing T Filter for HEPA Tower Air Purifiers, HRFTC1