Quote Originally Posted by growinit
Is there a way to leave the exhaust off (for the co2) and still have that low odor?
I think that you're in a very similar situation to mine...

The only solution I see?:::
You've got to seal up your grow room dude.
No more exhaust fans, so the temperatures stay low.

So, if you have no exhaust, you need a a/c unit in there... so you can keep the right temps.
And if you've got an a/c unit in there, hell, place a dehumidifier or a humidifier (whichever you need) while you're @ it.

As Z says, you'll want to raise the CO2 ppm to 1800 for about 3 hours... then evacuate all the air from the room.

Then, start over again with the 3 hours and 1800ppm.

Of course, now that you've got an a/c in there, you need to figure out a way to exhaust the hot air coming from the back of the a/c unit.

!!!!! But don't be put off dude! All these things, I plan on doing in the future... for this grow, I'll do it without the a/c. But the next ones? I'll go CO2, a/c, dehumidifiers, full room control through computer... etc.

What do you think?

-turtle420