Honeywell HEPA Air Purifier Filter is designed to provide 95% efficient filtration, capturing common airborne particles that are 2 microns or larger, including dust, pollen, tobacco smoke, cat dander, and mold spores. This HEPA-type filter is i for maintaining cleaner air in your home or office environment and should be replaced approximately every six months to ensure optimal performance. It is compatible with a variety of Honeywell Hepa Clean models such as 16200, HHT-011, HHT-080, HHT-081, HHT-090, HHT-145, HHT-149, and HHT-085. Additionally, it fits air cleaner models from Vicks (V9070 and V9071) and Holmes air purifiers including models HAP240, HAP243, HAP2404, HAP2400, HAP412, HAP422, HAP424, and HAP242. For Tower Air Purifiers, two filters are required. The filter measures 10.12 inches in length, 4.88 inches in width, and 1.63 inches in thickness, and comes packaged in a box for convenience and protection. This filter is a reliable choice to help maintain a healthier indoor air quality.