28x28x1 MERV 12 AC Furnace Filters 18x18x1 MERV 8 furnace air condition

MERV 8 furnace air condition filters are comparable to HVAC filters with the rating of MPR 800

Important Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air condition filter

Captures large airborne particles like household dust

Nordic Pure 12x24x2 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

MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600

28x28x1 MERV 12 AC Furnace Filters 18x18x1 MERV 8 furnace air conditionActual Size: 27 3 4 x 27 3 4 x 3 4 (27. 75 x 27. 75 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