12x24x1 Pleated MERV 13 Air Filters 3 Pack shoe-cover Operating Humidity: 0-99% Noncondensing

Operating  Humidity: 0-99% Noncondensing

Daisy chain capable: 0

pre-soak your preferred choice of growing medium using a light base nutrient solution and Elite 91 ROOTS – Root & Plant Growth Enhancer at 1 – 10 ml per gallon of water to protect

It can be used on over 40 different categories of plants

12x24x1 Pleated MERV 13 Air Filters 3 Pack shoe-cover Operating Humidity: 0-99% NoncondensingNordic Pure MERV 13 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 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200