Compatibility: The HEPA H13 replacement filter ME-40 is compatible with MA-40 air purifiers MA-40A and MA-40B models. Our high-quality replacement filter elements can always keep your air purifier working at full capacity. Keep the air clean in your home, apartment, school or office. Easy to replace: The lightweight design makes the process of replacing the filter a breeze, so you and your family can maintain healthy and pure air in every room. The freshener filter helps to remove irritants and neutralize odors. HEPA H13 filter: can remove 99.9% of particles, including odor, smoke, pet dander, dust, etc. Capture finer particles than HEPA H11 (0.3 microns). Ideal for smokers, pet owners and cooking smells. Three-stage filtration: the real HEPA filter can capture fine particles, the second filter can remove various household odors, and the fine pre-filter can capture large particles such as hair, pet fur and fluff. The high-quality replacement filter elements makes your home smell fresh and odorless. Replace the filter elements every 6 to 8 months to keep the air fresh and clean. Using old filters can reduce the efficiency of the air purifier. colour:Photo color Material:Composite material Package Contents: 1 x Air Purifiers Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.