No 1" 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.
Electrostatically charged fibers attract and capture large allergens like, pollen, mold spores and dust mite debris
Captures microscopic allergens like smoke, pet dander, HH dust and smog
Lasts up to 3 months
Microparticle Performance Rating 1000
Meets American Lung Association's ® Health House ® Indoor Air Quality Guidelines