• The higher the MPR, the more microparticles such as pollen, pet dander, smoke, bacteria and viruses your filter will capture from the air passing through it
• For optimal performance of your heating & cooling system or HVAC system, change your home air filter at least every 12 months for 4 In. and 5 In. Filters
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool wasting energy
• Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 In. home air filters for your furnace, air conditioner or HVAC system
• Certified as asthma & allergy friendly
• Attracts and captures microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses and large particles, including lint, household dust and pollen
• 54% Small particle capture, like bacteria and particles that carry viruses
• For residential use only
• Create a countdown in the Filtrete Smart app. Simply use the app to scan the barcode on your filters packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, youll get a notification to change your filter

MPR 1550 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 1550 and MERV 12 rating, your AC filter will help pull and capture countless microparticles such as pet dander, smoke, bacteria and up to 55% of virus airborne particles (1) while letting cleaner air flow through. Your Filtrete Filter will also capture large particles, including lint, pollen and household dust. Use a 12-month pleated 4-inch home HVAC filter 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 365 days. Note: For easy replacement reminders, create a change countdown in the Filtrete Smart App. Simply use the app to scan the barcode on your filters packaging, then choose 90, 180 or 365 days for your replacement countdown. When the filters life is up, youll get a notification to change your filter. The No. 1 Recommended HVAC Air Filter Brand (2), Filtretes Home Air Filters provide the breakthrough technology needed to change how we clean our air, by filtering out particles both large and invisible, to create a cleaner, healthier home for ourselves and our families. Residential use only.
(1) Based on airborne MS2 virus testing. Initial efficiency.
(2) Based on the 2022 Ipsos US Brand Health Study of Residential HVAC Air Filters.