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3M’s best overall quality filter
Meets the American Lung Association Health House program Indoor Air Quality Guidelines
Compare to Filtrete Ultimate Allergen Filter (Deep Blue) 6-PK
Reduces pollen, dust, pet dander, mold spores, dust mites and other allergens from indoor air.
18 pleats per lineal foot for greater surface area to catch airborne particles than standard 1 inch filter and less filter changes.