Accumulair Diamond Air Filters, 21-1/4in x 21-1/4in x 1in, Set Of 4 Filters

Remove contaminants in the air with this Accumulair Diamond Air Filter. It can help reduce common allergens, such as bacteria, particles that carry viruses, pollen, mold spores, dust and pet dander. Electrostatically charged filter media captures airborne allergens smaller than 1 micron. Crafted with a cardboard frame. Lasts up to 3 months. Efficiency up to MERV 13.