HVAC systems should be rated to handle filters of MERV 14 and above
Nordic Pure MERV 13 is equivalent to MPR 2200-2400
Nordic Pure 12x18x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
Actual Size: 10 x 18 x 3/4 (10 x 18 x 0
and electrostatic filter media
12x24x4 (3 5/8) Pleated MERV 15 Air Filters Exact HVAC systems should be ratedActual Size: 11 1 2 x 23 3 8 x 3 5 8 (11. 5 x 23. 38 x 3. 63) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and removed. Ideal for customers looking for superior filtration or for commercial units which support a rating of MERV 15 and above Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 15+ is equivalent to MPR 2800 Made in the USA.