21x22x1 MERV 14 AC Furnace Filters 6 Pack PPE The presence of rosemeric acid

The presence of rosemeric acid in the plant cells forms a barrier that insects find distasteful

Works across a wide range of growing media including soil

Increase the efficacy of herbicides and insecticides

vapor pressure

This half-jacket frame includes no-slip rubber nose pads that hold the frame comfortably for hours

21x22x1 MERV 14 AC Furnace Filters 6 Pack PPE The presence of rosemeric acidNordic 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.