20x34x1 MERV 14 AC Furnace Filters 6 Pack nutrients-and-supplements The SAM 400® passed the

The SAM 400® passed the airborne inspection in spite of inefficiencies in laboratory HVAC system

A black case is included for storage

including plant extracts (kelp and yucca) and humic acid

True Liberty Bags are Made in the USA

20x34x1 MERV 14 AC Furnace Filters 6 Pack nutrients-and-supplements The SAM 400® passed theNordic 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.