3M Filtrete Ultra Allergen air conditioner and furnace air filters size 16x24x1 MPR 1500 are built to promote better airflow throughout your home, while significantly reducing harmful airborne contaminants. This MERV 12 filter uses a pleated fabric with electrostatically charged fibers that act like tiny magnets to capture even the smallest particles for up to 3 months. These filters will help to reduce bacteria and viruses that can fester within your indoor air for days. This is an ideal air filter to stock-up on before allergy season. Order from us today!