Nordic Pure 14x30x1 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
MERV 13 Trion Air Bear replacement furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2200-2400
Particles in indoor air are measured in microns
Approximately MERV 8 efficiency rating
The AC filter material extends beyond the frame
20x35x2 Pleated Air Filters MERV 13 Plus Carbon 16x20x4 (3 5/8) Nordic Pure 14x30x1 MERV 12Actual Size: 19 1 2 x 34 1 2 x 1 3 4 (19. 5 x 34. 5 x 1. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, smog, virus carriers, mold spores, help 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 13 is equivalent to MPR 2200