21x23 1/2x1 MERV 8 AC Furnace Filters 14x16x1 layer is a MERV rated

layer is a MERV rated smooth poly-blend filter material

Nordic Pure 20x30x1 MERV 14 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

MERV 8 furnace air conditioning filters are comparable to HVAC filters with the rating of MPR 1000

Particles in indoor air are measured in microns

Each Nordic Pure 4” MERV 8 air filter captures airborne particles as small as 3

21x23 1/2x1 MERV 8 AC Furnace Filters 14x16x1 layer is a MERV ratedActual Size: 20 x 23 1 8 x 3 4 (20 x 23. 13 x 0. 75) Removes lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 8 is equivalent to MPR 800 Made in the USA. Nordic Pure MERV 8 Pleated AC