Ive got a question here I am having a hard time finding the answer too. Room is about 10x15 or 10x10 feet. I have questions about CO2.

Am I better off sealing the room from the outside environment like Tranoble has done, and generating CO2 from something like a Blue Ox or a tank?

Am I better off pulling in constant fresh air into the room while quickly exhausting it back out in a different location outside, but not using any CO2?

Or am I better off pulling in fresh air and exhausting it, and using CO2 in conjunction?

I am new to CO2 but was under the impression that you can benefit from CO2 even if you have fresh air as well. I assume it is not as important as with a sealed room, but if it will help fill out the buds then I would love to do it. So is a CO2 generator better then a CO2 tank? I mean...how much worse are tanks? I already have 2 CO2 tanks from other hobbies (they are about the size of a SCUBA tank). I havent done the math but how long would they last to achieve the approximate ppm results I want?

Then comes the inevitable question of how to do the CO2. I figured the best way would be to have constant fresh air moving through the room, then for specific periods of about an hour, shut the fans off, release the CO2 and let the temps raise (4 1000watt HPS so that shouldnt be hard), and then exhaust the CO2 and bring fresh air back in. I assume I must shut off the fans whether its a CO2 generator or a CO2 tank on a constant seep cause otherwise it wont be utilized? CO2 controllers are not very expensive.

I guess when it comes down to it, if a sealed room can produce just good results as fresh air if it has an A/C, dehumidifier, and CO2... then it sure its nice to have the safety and control over the environment.
Racerx Reviewed by Racerx on . CO2: Sealed Room or with Fresh Air? Ive got a question here I am having a hard time finding the answer too. Room is about 10x15 or 10x10 feet. I have questions about CO2. Am I better off sealing the room from the outside environment like Tranoble has done, and generating CO2 from something like a Blue Ox or a tank? Am I better off pulling in constant fresh air into the room while quickly exhausting it back out in a different location outside, but not using any CO2? Or am I better off pulling in fresh air and Rating: 5