14x22x1 MERV 14 AC Furnace Filters 6 Pack Cloning & Seed Starting Allows nutrients to move into

Allows nutrients to move into the soil and adhere to growing media and hydrophobic soils

Safe for use around pets

fungi build a microbial system in and on plant roots which greatly enhance plant vigor

But in all seriousness

14x22x1 MERV 14 AC Furnace Filters 6 Pack Cloning & Seed Starting Allows nutrients to move intoNordic 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.