With each pass through the carbon furnace air filter
Nordic Pure 15x20x1 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
Nordic Pure 14x20x2 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 16x25x5 Air Bear Replacement MERV 10 air filters measure an actual depth of 4 7/8"
capturing large airborne particles
20x36x1 MERV 12 AC Furnace Filters 17 1/4x23 1/4x1 With each pass through theActual Size: 19 1 2 x 35 1 2 x 3 4 (19. 5 x 35. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic Pure