How ventilated can a room be and still leave adequate Co2 for about 2-4 plants in a room about 300 Q/ft room. I intend to have my Co2 source as close to the plants as possible. I am not going to be able to go big with a timed/regulated Co2 system so it will more then likely use a constant either home made or purchased system like THIS one. I will want maximum yield in the least amount of time but will need to be able to vent out any lovely flowering aromas
Thanks!
Thanks!