Particles in indoor air are measured in microns
MERV 13 Plus Carbon air filters are comparable to air filters with the MPR rating of 2200
Nordic Pure 12x30x1 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
Nordic Pure 16x25x2 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: 13 x 21 x 3/4 (13 x 21 x 0
20x25x 1/2 Half Inch Ring Panel MERV 8 Furnace Air Filters Number Per Box:12 Particles in indoor air areActual Size: 19 1 2 x 24 1 2 x 1 2 (19. 5 x 24. 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