Nominal Size: 21 1/2x21 1/2x1; Actual Size: 21 1/2" x 21 1/2" x 3/4"
Comparable to MPR 1000 to 1200 Micro Allergen Defense and Honeywell Allergen Plus FPR 7
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke.
Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
100% synthetic electrostatic media for high efficiency with low air flow resistance
