Filtrete 20x25x5 MPR 1550 Air Filter, made by 3M, helps capture unwanted particles and allergens from your household air to contribute to a clean home environment. Designed with exclusive Filtrete 3-in-1 technology, including a high MPR 1550 and MERV 12 rating, your AC filter will help pull and capture countless microparticles – such as pet dander, smoke, bacteria and viruses – while letting cleaner air flow through. Your Filtrete Filter will also capture large particles, including lint, pollen and household dust. Use a 12-month deep-pleated 5-inch home HVAC filter in your compatible furnace, air conditioner or HVAC system. For optimal performance of your HVAC system, change your 5-inch furnace filter at least every 12 months. The No. 1 Recommended HVAC Air Filter Brand (1), Filtrete’s Home Air Filters help capture particles both large and invisible, to create a cleaner, healthier home. (1) Based on the 2022 Ipsos US Brand Health Study of Residential HVAC Air Filters.