The a/c unit only cools the air in your room by using only the air in your room, it doesn't bring it in from the outside , so ur plants will use all the co2. :bigsmoke:
HIGH CHEIF Reviewed by HIGH CHEIF on . co/2 ac ? i'm setting up a sealed room with a window ac unit in it do i have to enrich with co/2? My room is 4x6x7. thanks for the help Rating: 5