3m Filtrete 20x20x1 (19.6 X 19.6) Filtrete 2200 Elite Allergen Reduction Filter By 3m
This filter is 20x20x1 and measures 19.6x19.6x1. With a 2200 performance rating, no competitors 1 filter performs better. This filter is 94% effective at capturing large airborne allergens, such as pollen, mold spores and dust mite debris. It also captures small particles such as smoke, smog, household dust, pet dander, bacteria and particles that can carry viruses and tobacco smoke odors. This product lasts up to 3 months.