15x18x1 Exact MERV 8 AC Furnace Filters 6 Pack Lighting Accessories RPM is adjustable from 6

RPM is adjustable from 6 RPM (2 ft/min) to 10 RPM (4 ft/min)

With CO2 enrichment

one would only require 104 lights in a facility which would regulary require 100 open-style DE lights

with the added benefit of large vapor clouds

15x18x1 Exact MERV 8 AC Furnace Filters 6 Pack Lighting Accessories RPM is adjustable from 6Nordic 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