29x29x1 MERV 12 AC Furnace Filters 21 1/4x23 1/4x1 The electrostatic charge works as

The electrostatic charge works as a magnet to draw in and trap smaller airborne particles

Nordic Pure 20x25x5 Honeywell Replacement Pure Carbon Pleated Odor Reduction MERV 8 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

Trion Air Bear Replacement filters have a depth of 4 7/8" and ideal for normal air filtration

Nordic Pure 8x20x1 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

and electrostatic filter media

29x29x1 MERV 12 AC Furnace Filters 21 1/4x23 1/4x1 The electrostatic charge works asActual Size: 28 1 2 x 28 1 2 x 3 4 (28. 5 x 28. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic Pure