Filtrete 11214PK Allergen Reduction Furnace Filter, 18 x 24, 2/Pack, 2 Packs/Carton MMM11214PK MMM 11214PK, Electrostatically charged fibers attract and capture airborne allergens. Works on pollen, mold spores and dust mite debris. Also effective againstsmoke, pet dander, household dust, smog and candle soot. 1200 microparticle reduction rating. Lasts up to three months. Two filters per pack, two packs per carton. Filtration For: Mold Spores; Smog; Dust Mite Debris; Allergens; Soot; Pet Dander; Pollen; Dst; Smoke; Width: 18 in; Depth: 24 in; HUB Compliance: N/A., UPC 051111100219