About This Item
Air returning through your 14x25 grille carries both visible dust and smaller airborne allergens that can recirculate through the home. This 14x25x1 Allergen Defense filter in Filtrete’s 1000 MPR (MERV 11) tier uses electrostatically charged polypropylene media with 3‑in‑1 technology to attract and capture countless microparticles—such as pet dander, smoke, and smog.
