the effective life of your filter depends on the environment in which you live
Nordic Pure MERV 10 is equivalent to MPR 1000
This high performance HVAC replacement filter will outperform non-electrostatic fiberglass filters
Nordic Pure 12x12x1 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
12 1/2x23 1/2x1 MERV 13 Plus Carbon AC Furnace Filters Number Per Box:6 the effective life of yourActual Size: 12_1 2 x 23_1 4 x 3 4 (12. 5 x 23. 25 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, smog, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400