16" x 25" x 1", Purple, Ultra Allergen Filtrete Filter, 3 Month Filter Is 90% Effective At Capturing Large Allergens Like Mold Spores & Pet Dander, Electrostatically Charged, 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 1500, Lasts Up To 90 Days.
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