Filtrete 9825DC Micro Allergen Filter, 24 in L, 16 in W, 11 MERV, 1000 MPR

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.