Honeywell Filter O True HEPA Replacement Air Purifier Filter, HRF-O1

The Honeywell Allergen Plus Series Air Purifier achieves proven HEPA performance through this powerful 3-in-1 Certified HEPA Air Purifier Filter. This single filter employs three distinct levels of purification. The first level uses a vacuumable Pre-Filter to capture larger airborne particles. The second level utilizes the certified HEPA Filter to effectively capture up to 99.97% of microscopic allergens and particles including dust, pollen, pet dander, dust mite debris, and smoke as small as 0.3 microns. The third level incorporates an Activated Carbon Filter for effective odor reduction, ensuring the air that passes through is not only clean but noticeably fresher.