Quote Originally Posted by LuciferN
If you use Co2 you don't have to ventilate the place... The purpose of the ventilation is to bring more Co2 to the plants as the ambient air has about 20% of Co2. You still need to ventilate when the place is getting too hot because of the Co2 and the lamp but it's less often so there is not too much waste.

so i have a 9x10x7ft room or 630sqft. heres the prices and details for a combo carbon scrubber i can get, which comes with (filter,flange,FAN)..

156CFM+filter+flange = 300

350cfm+filter+flange= $430.

I was initially planning on using a few 20oz paintball CO2 canisters. i was just worried that every week im going to be running to get it refilled...

either that or i make my own slow release co2 method.
TheXFactor Reviewed by TheXFactor on . CO2 and ventilation Question. I would like to add CO2 to my grow tent and flower room but it doesnt sound practical with what ive read, because in order to properly ventilate your room u need to change the air in the room 2-5 times every minute. now any co2 u put in there litteraly goes right out the window. its like trying to heat your home in the winter with all the windows open... I am currently work with a 9x10x8ft room. 720sqft... so thats a pretty big fan i would need. plus im going to need a carbon scrubber. but Rating: 5