Filtrete 16x20x1 MPR 2200 Air Filter, made by 3M, helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment. Designed with exclusive Filtrete 3-in-1 technology, including a high MPR 2200 and MERV 13 rating, your AC filter will help pull and capture countless microparticles – such as pet dander, smoke, bacteria and up to 78% of virus airborne particles (1) – while letting cleaner air flow through. Your Filtrete Filter will also capture large particles, including lint, pollen and household dust. This filter is also CERTIFIED asthma and allergy-friendly (2). Use a 3-month pleated 1-inch home HVAC filter in your furnace, air conditioner or HVAC system. Four come in a pack, so keep one filter as backup, or use them in multiple areas. For optimal performance of your heating and cooling system or HVAC system, change your furnace filter at leas