12x20x1 Pleated MERV 7 Air Filters 3 Pack Nutriants non-pathogenic saphrophytic fungus known as

non-pathogenic saphrophytic fungus known as Ulocladium oudemansii (U3 strain)

Base E27 - 9W - 110V

6 gallons per day

General frequencies of use: Every 12 weeks throughout the growing season

they can start making noise or showing signs of wear

12x20x1 Pleated MERV 7 Air Filters 3 Pack Nutriants non-pathogenic saphrophytic fungus known asNordic 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