Filtrete MPR 1900 Premium Allergen, Bacteria & Virus Air Filters 4" AA

The Filtrete MPR 1900 Allergens, Bacteria, Viruses & Air Pollutants* Air Filter, designed to fit AprilAire Whole House Air Purifiers, ensures excellent particle capture and airflow quality. This Filtrete air filter matches the MERV rating of AprilAire replacement filters while providing easy installation. As North America's #1 recommended HVAC filter brand, based on the 2025 Sago US Brand Health Survey of Residential HVAC Air Filters, Filtrete is recognized for its unwavering commitment to quality and innovation. Millions of households rely on our filters to create cleaner, healthier indoor environments, reflecting our expertise in air filtration technology. Equipped with exclusive Filtrete 3-in-1 technology and a high MPR 1900 rating, these furnace and air conditioner filters effectively capture bacteria, viruses, and common allergens while maintaining strong airflow. This air filter for homes captures 26% more microparticles (0.3-1 microns in size) than MERV 13 requirements, including wildfire smoke/other PM2.5 and fine particles from cooking, smog, and tobacco smoke—while also capturing common allergens, bacteria, and viruses, plus larger particles like lint, household dust, dust mite debris, pollen, mold spores, and pet dander. Certified Asthma & Allergy Friendly, these filters are ideal for any home. Use these air filters in your furnace, air conditioner, or HVAC system. For optimal performance, replace your Filtrete AprilAire filters at least once per year to help keep your heating and cooling system running efficiently. For hassle-free replacement reminders, use the Filtrete Smart App. Simply scan your filter's packaging barcode, set the reminder days, and receive notifications when it's time to change your filter. Filtrete's commitment to consistently high performance and cleaner indoor air** is achieved through our comprehensive management of the entire manufacturing process. From raw materials to finished filters, Filtrete controls every step of the process, from making the filter media to framing it to your filter size, to help ensure our air filters perform at their best. *Air pollutants include cooking particles, smog particles, tobacco smoke, wildfire smoke/other PM 2.5, and exhaust particles **Cleaner air compared to MERV 13 minimum filter requirements