Brand NEW O2Genix Air Purifier Replacement Filter Compatible with MA-40 Medify Air Purifier 3-in-1 Pre-Filter, True HEPA H13 and High Efficiency Activated Charcoal Filter Catches Smoke Allergies Pet Dander O2Genix Medify air purifier replacement filter perfectly fits Medify MA-40 replacement filter. Its dimensions are 17.32? x 8.19? x 1.57?. You don?t need any tools to change the Medify MA-40 replacement filter, which makes it easier to install. This air purifier replacement filter gives you clean and pure air by cleaning it in 3 steps. Fine pre-filter, high-efficiency activated carbon filter, and H13 True HEPA Filter. O2Genix MA-40 filter replacement for Medify air filter is of the same quality as the original. It keeps your air purifier in its best working condition and capacity, delivering perfect performance on its air filtration. For maximum efficiency it is recommended changing the levoit air purifier replacement filter every 4 months. The use of a new air purifier filter not only provides you with pure air, but also increases the life of your air purifier. See pictures for more item details. Trusted Seller-Fast Ship!