rounded corners
Only the keif makes it through the black bag and collects in the outer mesh bag
They also block UV light and infrared heat
Handles are made of tough ultra-light aluminum alloy
odorless formula won't affect air quality or plant health indoors
28x36x1 MERV 14 AC Furnace Filters 6 Pack botanicare rounded cornersNordic 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.