15x20x1 airx allergy air filter - merv 11

Specialized quality attracts and captures small particles in the air helps promote superior air quality in the workplace of the home available in different sizes to fit air conditioner or furnace filters merv 11 air filter attracts common household allergens like dust, pollen, mold spores, dander, smoke and smog replace every 90 days (under normal use) pleated media design dimensions: 15" x 20" x 1" made in the usa