We recommend that you change your air filter every 30-90 days to maintain maximum efficiency and economy
Nordic Pure 18x18x1 MERV 14 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home
Actual Size: 12_3/4 x 21 x 3/4 (12
They remove levels of Volatile Organic Compounds (VOCs) such as chemicals from household cleaning products
Nordic Pure 12x12x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
19x21x1 MERV 7 Plus Carbon AC Furnace Filters Number Per Box:6 We recommend that you changeActual Size: 18 1 2 x 20 1 2 x 3 4 (18. 5 x 20. 5 x 0. 75) Captures large airborne particles like lint, household dust, pollen, dust mites, mold spores and other contaminants. This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 7 is equivalent to MPR 600 Made in the USA.