Each time air passes through a Nordic Pure pleated furnace filter
MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800
Nordic Pure 24x24x1 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800
while these filters are larger at 5 1/4”
25x25x1 Pleated MERV 14 Air Filters 28x28x1 Each time air passes throughActual Size: 24 1 2 x 24 1 2 x 3 4 (24. 5 x 24. 5 x 0. 75) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and removed. Ideal for customers with health problems or for commercial units which support a rating of MERV 14 and above Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 14 is equivalent to MPR 2800 Made in the USA. Nordic Pure MERV