20x20x1 Filtrete 500 Dust & Pollen Refillable Filter by 3M + 3 Refill Filters
- AirFilters.com$7.99Buy
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From AirFilters.com
20x20x1 Filtrete Dust and Pollen Filter 3M Filtrete 500 Performance Rating. Includes One Frame + 3 Refills. Up to 10 times more effective at capturing micro particles than ordinary fiberglass filters. Up to 3 months of filtering performance. Captures large, airborne allergens like mold spores and large dust particles. AirFilters.com This MERV 7 Filtrete Dust and Pollen Filter has a 500 performance rating and is up to 10 times more effective at capturing micro particles than ordinary fiberglass filters. It captures large, airborne allergens like mold spores and large dust particles. It can last up to 3 months! No unnecessary antimicrobial chemicals have been added.