16x21x1 MERV 8 AC Furnace Filters 12 Pack Controllers The active ingredient is Beauveria

The active ingredient is Beauveria bassiana

When these extracts are applied

5" of Headspace on each layer

and arboriculturists

Place away from bird feeders to distract the squirrels

16x21x1 MERV 8 AC Furnace Filters 12 Pack Controllers The active ingredient is BeauveriaNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters