If you want to get rid of polluted air in your home, choose these maximum allergen reduction air filters from Filtrete. They help capture particles and contribute to a fresher, cleaner air around your house. We can all agree that the quality of the air we breathe at home is very important. Good air quality keeps us healthy, while bad air quality can lead to illness. This filter model has a high MPR rating of 1900, which means it can get rid of microparticles such as pollen, pet dander, viruses, smoke, and bacteria. It does so by capturing from the air passing through it. It can even capture large particles, including household dust, pollen, and lint. For optimal performance, please change your filter at least every 3 months.