25 packs per box
The average level of CO2 in the atmosphere is about 300 ppmv (parts per million)
The 3-paddle blade is driven by a permanent prelubricated 120V motor
Easy-to-use LED display panel
double junction reference
10x20x1 Pleated MERV 14 Air Filters 3 Pack Fertilizer 25 packs per boxNordic Pure MERV 14 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.