We recommend changing 1” and 2” filters every 30-90 days
Particles in indoor air are measured in microns
Nordic Pure 12x30x1 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
Actual Size: 12_1/2 x 23_1/4 x 3/4 (12
It is important to note that because of this high filtration and air flow restriction
12x20x2 Pleated MERV 14 Air Filters MERV 13 We recommend changing 1” andActual Size: 11 1 2 x 19 1 2 x 1 3 4 (11. 5 x 19. 5 x 1. 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