You are better off getting a good air flow through the room. without the right setup, being keeping your water chilled and bringing the room up to about 90 degrees. It won't do much.

But if you don't have alot of fresh air flow a little from time to time will not hurt. Mostly I just breath heavy on the girls when I go check them out. LOL.

I know I do this every time BUT

If you do get CO2 equipment remember this.

CO2 is heavy than air and can flood a room or whole house killing every air breather inside. Oderless tasteless and painless.

BE VERY CAREFULL.