22x26x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack hydro-systems and sound an alarm (both

and sound an alarm (both visible and audible) in the event of the CO2 level going above normal or safe levels

indicated by a blinking 'x10' image

Housing:                        Metal

Give your plants the underground advantage they need to thrive

This natural

22x26x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack hydro-systems and sound an alarm (bothNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.