No 1 Inch three-month competitor filters better than the Filtrete Micro Allergen Reduction Filter. It is up to 20 times more efficient than fiberglass filters and it delivers up to 3 months filtering performance.
Outperforms all competitors' 3 month, 1 Inch filters
Captures microscopic allergens like dust, smoke and smog particles
Captures large allergens like mold spores and pet dander