layer is a MERV rated smooth poly-blend filter material
Nordic Pure 10x20x1 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
AC and heater window units
Actual Size: 15 x 23 x 3/4 (15 x 23 x 0
Actual Size: 15 1/2 x 23 1/2 x 1/2 (15
17 1/2x21x1 Exact MERV 14 AC Furnace Filters 15x15x1 layer is a MERV ratedActual Size: 17 1 2 x 21 x 3 4 (17. 5 x 21 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 14