18x20x2 Furnace Air Filters MERV 8 Pleated Plus Carbon 3 Pack grow-light-ballasts collodial silver or harsh chemicals

collodial silver or harsh chemicals that can hurt your plants or microbes

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Nitrogen is a major component of every protein molecule

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18x20x2 Furnace Air Filters MERV 8 Pleated Plus Carbon 3 Pack grow-light-ballasts collodial silver or harsh chemicalsNordic Pure 18x20x2 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material