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a human hair is about 70 microns wide
Nordic Pure 14x24x1 MERV 13 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
Nordic Pure 12x24x2 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
Particles in indoor air are measured in microns
RETURNS: Custom Carbon AC furnace air filters are not returnable since we hand make them per your exact dimensions when you enter your air filter size above
14x20x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 13x18x1 a human hair is aboutActual Size: 13 1 2 x 19 1 2 x 1 2 (13. 5 x 19. 5 x 0. 5) Captures large airborne particles like household dust, pet dander, bacteria and pollen. Ideal for customers with apartments, window units, campers, and RVs. Antimicrobial high capacity, polyester material with an added layer of smooth poly blend electrostatic filter media For filter installation the air enters thru the fuzzy, high loft side and exits out the thinner, smooth side. Made in the