Filtrete 20X20X1 Ac Furnace Air Filter, Merv, Actual Size 19.719X19.719X0.78 In Filtrete 20x20x1 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 viruses ? while letting cleaner air flow through. This HVAC filter captures up to 69% of small particles (1) and 78% of airborne virus particles (2) to help make your air cleaner. Your Filtrete Filter will also capture large particles, including lint, pollen and household dust. This filter is CERTIFIED asthma and allergy-friendly (3). Use one of the two 3-month pleated 1-inch home air filters in your furnace, air conditioner or HVAC system. Change your furnace filter at least every 90 days. (1) Percent captured is based on ASHRAE 52.2 testing for 0.3 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing. (2) Based on airborne M2 virus testing. Initial efficiency. (3) As outlined in report ASCR: 1246-01. (4) Based on the 2022 Ipsos US Brand Health Study of Residential HVAC Air Filters. MAKE YOUR HOME YOUR SANCTUARY: 2-pack of 3-month pleated 1? Filtrete 20x20x1 MPR 2200 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter?s exact dimensions are 19.81 x 19.81 x 0.81 EXCLUSIVE TECHNOLOGY: Air filter designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through COUNTLESS MICROPARTICLES: With a 2200 MPR and MERV 13 rating, as well as a 69% small particle capture rate (1) and 78% airborne virus particle capture rate (2), your Filtrete Filter will help capture many microparticles from the air passing through it CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (3) and helps capture dust, lint and other allergens in your household air VERSATILE USES: Works for changing any air filter in your furnace, air conditioner/heating system or HVAC system; for optimal performance, change your filter at least once every 90 days SUBSCRIBE AND SAVE: On your first order, simply click on Subscribe and Save" to set up your delivery schedule and save up to 10% on your orders