Allergen Defense Red Micro Pleated Air Furnace Filter, 12x24x1-in.

As you manage your allergies on a day to day basis, you're looking for options that can help reduce allergens in your air. Filtrete Allergen Defense filters turn your central heating and cooling system into a whole house air cleaner. With electrostatic technology, these filters help reduce airborne allergens from air passing through the filter. * Helps protect your home by reducing allergens in your airAttracts and captures particles like household dust, lint, dust mite debris, mold spores, pollen, pet dander and smokeElectrostatically charged to attract and capture microscopic airborne particlesFor maximum performance, change your filter at least every 90 daysMeets the American Lung Association Health House Indoor Air Quality GuidelinesCarries a 1000 Microparticle Performance Rating (MPR)