16x22x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack CO2 Once in calibration mode submerge

Once in calibration mode submerge the probe in 1382 ppm calibration standard

Tests one fixture only at either 120/240/277V output

Folded 25" x 12 x 7''

With an 11-blade Toro hardened cutting reel

Experience balanced color under high pressure sodium lighting

16x22x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12 Pack CO2 Once in calibration mode submergeNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.