9805-4 Air Filter, 20 In L, 14 In W, 11 Merv, 1000 Mpr, Polypropylene Frame

Filtrete 14"x20"x1" Red Micro Allergen Defense Pleated Furnace Air Filter. It is 90% effective at capturing large allergens like mold spores & pet dander. It is electrostatically charged to capture microscopic allergens like dust, smoke & smog. It captures bacteria & particles that can carry viruses. It meets the guidelines of the American Lung Association Health House Program. It has a MPR rating of 1000 and lasts up to 3 months.

• 14 in. x 20 in. x 1 in.
• Red color
• 90% effective at capturing large allergens like mold spores & pet dander
• Electrostatically charged to capture 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 of 1000
• Lasts up to 3 months