need more info on Exhale Grow Bags?

Waste of money in a non sealed tent.

Morale of the story, screw grow bags, snake oil, rip off.

Co2 has a higher density than o2. Gravity will slowly drag all co2 to the lowest point in any household, around 4 sets of lungs in a house will provide enough co2 to keep levels at 800+ ambient, throw in a 1 gallon glass jar with some yeast and sugar and you are easily running 1000+ weeks at a time. Have a small intake fan sucking air from as close to floor as you can. growdiaries.com/diaries/127559-grow-journal-by-exbeginner/week/709687 Proof is in the pudding.

all this and more can be found here. https://www.exhaleco2bags.com/faq you should only need one bag unless you are pushing DLI's of 30-40+ Good Luck