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3M Filtrete Filters - 4" Allergen Reduction Filter

Whole house air cleaners are becoming increasingly popular in home heating and cooling systems, and are commonly placed in new constructions or when replacing older heating and cooling systems. Filtrete® Media Air Cleaner 4" Filters are designed for whole house air cleaners with housings that accommodate 4-inch nominal size filters, and carry a 1550 microparticle rating. The filters help to attract and capture particles like pollen, mold spores, and dust mite debris.