The 3M Filtrete MPR 2500 Premium Allergen & Ultrafine Particles Air Filter is a high-performance HVAC filter with a 2500 MPR and MERV 14 rating that provides 77% small particle capture rate. This 4-pack of 20x20x1 inch filters features exclusive Filtrete 3-in-1 technology designed to pull in and trap unwanted particles while allowing cleaner air to flow through your home.

The filter captures countless microparticles including pet dander, smoke, bacteria, and up to 90% of virus airborne particles based on initial efficiency testing. It also captures large particles such as lint, pollen, and household dust. The pleated filter design allows air to flow through while helping to capture particles through the depth of the filter material, not just on the surface.

Certified Asthma and Allergy-Friendly by the Asthma and Allergy Foundation of America. Filtrete is North America's most trusted brand of HVAC filters. For optimal performance of your heating and cooling system, replace the filter at least every 90 days. Compatible with furnace, air conditioner, heating system, or HVAC system air filter changes.