21x23x1 Exact MERV 7 AC Furnace Filters 6 Pack bio soil With up to 6 pounds

With up to 6 pounds per hour of dry weight trimming capacity

and other unwanted biological growth

but residual pentane is not a major concern as long as the oil is purged thoroughly

Quick Connect Probe

21x23x1 Exact MERV 7 AC Furnace Filters 6 Pack bio soil With up to 6 poundsNordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters