20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:2 MERV 13 furnace filters are

MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200-2400

mold spores and other contaminants are removed

Nordic Pure 10x10x1 MERV 7 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 20x22x1 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

Replacing your air filter regularly not only improves indoor air quality

20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:2 MERV 13 furnace filters areActual Size: 19 1 2 x 24 1 2 x 3 5 8 (19. 5 x 24. 5 x 3. 63) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. If you are replacing a Honeywell or Lennox 20x25x4 Plus Carbon or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x25x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter