I have absolutely no info on this and was simply brainstorming during my last bong session. I was wondering how much CO2 might be exhaled in a breath. Would it be possible for a tiny grow room (3-6sq/ft) to take advantage from blowing up party balloons and puncturing a tiny pin hole in them to slowly release the CO2. A childrens magic trick to do this without popping the balloon is to place 2 pieces of scotch tape in a cross on the skin of the balloon and press the pin through the intersection.
This would be total redneck engineering but just wondering
This would be total redneck engineering but just wondering