20x34x1 MERV 13 AC Furnace Filters 6 Pack rockwool Ozone production - 7

Ozone production - 7

full spectrum light with highest intensity PPFD delivered through a multi-bar

55% thicker than other bags on the market

Through The Soil King's research

20x34x1 MERV 13 AC Furnace Filters 6 Pack rockwool Ozone production - 7Nordic Pure MERV 13 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 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200