Allergen Defense Red Micro Air Pleated Furnace Filter, 12x20x1-In. STEELCOAT® PETOSKEY PLASTICS Zinc motor housing - dissipates

Zinc motor housing - dissipates heat quickly and extends motor life

tight corners & tough removal

For log home construction and for securing railroad ties

This mask is not a respirator

high efficiency & ultra low consumption

Allergen Defense Red Micro Air Pleated Furnace Filter, 12x20x1-In. STEELCOAT® PETOSKEY PLASTICS Zinc motor housing - dissipates12" x 20" x 1" Red Micro Allergen Filtrete Filter, 90% Effective At Capturing Large Allergens Like Mold Spores & Pet Dander, Captures Microscopic Allergens Like Dust, Smoke & Smog, Captures Bacteria & Particles That Can Carry Viruses, Meets The Guidelines Of The American Lung Association Health House Program. MPR Rating 1000, Filter Lasts For 90 Days.