Media Air Cleaners are the preferred dust fighter for indoor air quality. The new Source 1 series air cleaners feature Opti-Fiber Media, and efficiently remove airborne microscopic particulates at 61.8%.The spun-bonded fibers are free of any chemical binders, but do not absorb the moisture that goes into a home. They also include a 5-year cabinet warranty. The MERV 10 Media Air Cleaners have unique designs that match the color and the look of all Unitary Product brands – YORK, COLEMAN, LUXAIRE and Source 1. For more information, check out our website at: