Outperforms all other 3-month, 1 inch filters. It is up to 30 times more efficient than fiberglass filters and it delivers up to 3 months filtering performance.
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.