Filtrete 20x20x1 AC Furnace Air Filter, MERV 8, MPR 700, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 19.880 x 19.880 x 0.78 in )

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