so if you run a grow room with only a carbon filter recirculating and some co2 supplementation - and lights vented seperately, would it smell inside the rest of a house?
I use a carbon filter in my grow to exhaust air to the outside of the grow room, because it will be smell free, and keep the grow at a negative pressure so no odor leaks are possible.
do you somehow ensure that the grow room is under a slight negative pressure?
if not - are you SURE there is NO smell at all? or is it there, just faintly, all over the house?
I'm about to add co2 and i'm curious...