We recommend changing your HVAC furnace filter every 1-3 months
MERV 12 furnace air condition filters are comparable to HVAC filters with the rating of MPR 1500-1900
Nordic Pure 14x14x1 MERV 14 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
IMPORTANT Note: Air filters have an actual size that is a fraction of an inch smaller than the standard size (also known as "nominal size")
Nordic Pure 14x25x2 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
16x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 16x25x4 We recommend changing your HVACActual Size: 15 3 8 x 23 3 8 x 3 5 8 (15. 38 x 23. 38 x 3. 63) 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