so is it safe to build one like the sticky on this same page and have it in the bedroom around people 24/7
probably a really dumb question but I know co2 isn't safe to breathe a lot of
hypothetically speaking you can easily get a co2 tank from behind a bar/restaurant just don't get a yellow or orange one bc those are coka cola and easily identifiable. a hydro shop will refill them for cheap and you can get the timer and valve for cheap too. hypothetically of course.