While different companies use different scales to measure the air filter’s efficiency
Nordic Pure 16x28x6 Aprilaire Space-Gard 2400 Replacement Air Filters Part 401 MERV 8 Plus Carbon are made of a dual material where the MERV rated material has been fused together with a carbon layer
The electrostatic charge works as a magnet to draw in and trap smaller airborne particles
Nordic Pure 14x20x1 MERV 13 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
Nordic Pure 16x25x4 Plus Carbon Air Filters MERV 14 are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home
16x21 1/2x1 Exact MERV 8 AC Furnace Filters 16x21x1 While different companies use differentActual Size: 16 x 21 1 2 x 3 4 (16 x 21. 5 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