The Homedics True HEPA Air Cleaner Replacement Filter provides cleaner, fresher, healthier air for the home. The long lasting cleanable True HEPA filter removes 99.97% of airborne contaminants like allergens, pollen, smoke and dust. It is compatible with Homedics HEPA Air Purifiers AF-10. Replace every 12 months, Includes 1 filter, Easy care - simply vacuum thoroughly when the "clean filter" light comes on. WHITE