Honeywell Products - Honeywell - Platinum Air HEPA Air Purifier Replacement Filter - Sold As 1 Each - HEPA filter is 99% effective at reducing airborne particles. - ProTec&trade; treated filter helps prevent mold growth on the filter. - Odor-Lock&trade; filter technology helps remove common odors. Honeywell Products - Honeywell - Platinum Air HEPA Air Purifier Replacement Filter - Sold As 1 Each - HEPA filter is 99% effective at reducing airborne particles. - ProTecTM treated filter