Today I want to talk briefly about CO2, and touch on a few key points. I explain why we use CO2, and how we use CO2.. If you like my daily uploads please show your support by subscribing to this channel and hitting the thumbs-up button. If there's any video topics you want to see me cover leave your comments below, I see the comments even if I don't respond. Thank so much for subscribing to us on WeedTubes and following us on Instagram, FaceBook and YouTube.