the efficiency of all air filters is rated according to the same criteria as set forth by ASHRAE
Nordic Pure 16x20x4 Pleated Air Filters MERV 14 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home
Nordic Pure 12x20x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
Actual Size: 6 x 30 x 3/4 (6 x 30 x 0
Nordic Pure MERV 12 is equivalent to MPR 1500-1900
15x20x2 Pleated Air Filters MERV 14 Plus Carbon Number Per Box:3 the efficiency of all airActual Size: 14 1 2 x 19 1 2 x 1 3 4 (14. 5 x 19. 5 x 1. 75) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 14 is equivalent to MPR 2800 Made in