Filtrete 16x20x1 Dust Rdct Filter 300-4 Pack of 4

3M Filtrete Dust Reduction Furnace Filter Filtrete dust reduction heating and air conditioning filter. High air flow filter performs better than ordinary fiberglass and washable 1 filters. Electrostatically charged fibers attract and capture large airborne allergens like pollen, household dust, and lint. Ideal for high velocity heating and cooling systems. Microparticle Performance Rating of 300. Lasts up to 3 months.

10 Times more effective than typical fiberglass filters. Electrostatically charged fibers act like tiny magnets to capture even the smallest particles. 20x25x1 in size. Ships fast!