21x23x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack food-storage Alternate rows and zones within

Alternate rows and zones within the same environment

but annual applications are recommended

If this does happen

or when disease inoculum is present

21x23x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack food-storage Alternate rows and zones withinNordic 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.