Filtrete 18 in. W X 1 in. H X 24 in. D 11 MERV Pleated Allergen Air Filter

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.