NaturalAire Standard Pleated Furnace Filter, 22 x 24 x 1-In.

22" x 24" x 1", naturalaire standard pleated filter, has an ashrae 52.2 rating of merv 8, convenient to use & easy to replace, ordinary furnace filters are designed to protect heating & cooling equipment from the insulating properties of relatively large airborne particles, removes even those microscopic particles that can stain walls & furnishings, or worse aggravate seasonal allergies.