Filtrete 20X20X1 Ac Furnace Air Filter,, Actual Size 19.880 X 19.880 X 0.78 In Filtrete 20x20x1 MPR 700 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 an MPR 700 and MERV 8 rating, your AC filter will help pull and capture countless particles ? such as pollen and pet dander ? while letting cleaner air flow through. Your Filtrete Filter will also capture large particles, including lint, dust mite debris, mold spores and household dust. Use these four 3-month pleated 1-inch home air filters in your furnace, air conditioner or HVAC system. For optimal performance of your heating and cooling system or HVAC system, change your furnace filter at least every 90 days. (1) Based on the 2022 Ipsos US Brand Health Study of Residential HVAC Air Filters. The higher the MPR, the more microparticles - such as pollen, pet dander and smoke - your filter will capture from the air passing through it ATTRACTS AND CAPTURES particles such as lint, pollen, dust, and pet dander FOR OPTIMAL PERFORMANCE of your heating cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy; Sign-up for a filter change reminder program that works for you! CREATE A CHANGE COUNTDOWN in the Filtrete Smart App. Simply use the app to scan the barcode on your filter?s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you?ll get a notification to change your filter OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. air filters for your furnace, air conditioner or HVAC system DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through MPR 700 has a rating of MERV 8 FOR RESIDENTIAL use only