Product DescriptionYour home should be your sanctuary, starting with the air you breathe. Filtrete Allergen, Bacteria & Virus Air Filters help capture unwanted particles from your household air, contributing to a cleaner, fresher home environment. By proactively capturing dust, bacteria, viruses and allergens, these high performance filters help improve your home?s air quality.FOR RESIDENTIAL use only. 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 filterAmazon.comThe Filtrete 1500 MPR Ultra allergen reduction filter not only vastly improves the air quality in your home, it also keeps your air conditioning and heating systems running efficiently, saving on utilities and maintenance costs. The electrostatic filter attracts and captures airborne dust, pollen, dust-mite debris, lint, mold spores, pet dander, smoke, smog, bacteria, and particles that can carry viruses. With each pass through the specially pleated filter, the air in your living space improves, making for a healthier home environment. This high-performance filter outperforms comparable non-electrostatic fiberglass and washable and reusable one-inch filters.1500 MPR UltraAllergen Reduction FilterAt a Glance:Electrostatic filter attracts and captures dust, pollen, dust-mite debris, mold spores, pet dander, smoke, smog, bacteria, and particles that can carry virusesImproves air quality by cleaning air with each pass through the filterKeeps your furnace or air conditioner running efficientlyOutperforms comparable fiberglass and washable/reusable filtersPack includes four filtersBy removing dust from the air, the filter also reduces strain on your furnace and air conditioner, helping to keep them running efficiently ().Electrostatic Design Captures More ParticlesThe 3M Ultra allergen reduction filter is made with both positively charged and negatively charged fibers that act like tiny magnets to attract air-polluting contaminants. Since particles in the air are either positively or negatively charged, they are attracted to and captured by the filter and kept out of your living space.Electrostatic filters, including the 3M Ultra allergen reduction filter, perform better than comparable non-electrostatic fiberglass and washable/reusable filters, because they attract and capture the small, allergy-aggravating microparticles that non-electrostatic filters can't.Improves Indoor Air QualityWith indoor air a surprising two to five times more polluted than outdoor air, the 3M Ultra allergen reduction filter can make a difference in maintaining a healthier home environment by cleaning air with each pass through the filter.The 3M Ultra allergen reduction filter features a 1500 Microparticle Performance Rating (MPR), which means it is able to capture large and small particles from the air, including household dust, pollen, dust-mite debris, mold spores, pet dander, smoke, smog, bacteria, and other allergens. This high-performance filter meets American Lung Association of the Upper Midwest Health House Program?s indoor air quality guidelines.Improves EfficiencyThis high-performance allergen-reduction filter also keeps your heating and air conditioning equipment working efficiently by removing dirt and reducing strain on the motor. It is recommended that you change the filter every three months. However, the effectiveness and life of the filter can vary and depend on the individual conditions in your home.About Filtrete Air FiltersFor nearly 25 years, Filtrete filters have delivered cleaner air to millions of homes, becoming a leader in residential air filtration. Developed by 3M engineers to help capture airborne allergens, the Filtrete filter media is electrostatically charged to act like tiny magnets to attract and capture