CO2 Safety

I know the risks of sticking my head in the fermentation chamber :D. I’m curious if there is any issue when bleeding a keg off? I noticed tonight after running some sanitizer and bleeding off, there was quite a bit of mist (not sure if CO2) coming out of the keg.

Secondly, is there ever an issue with storing a CO2 tank in a chamber as you’re cold crashing in the low '30s?

not to worry assuming you’re not in a tiny closet. max you’ve only got 3 or 4 volumes of co2 in there so it’s only going to fill a space equal to 3 or 4 times the keg volume assuming the keg is empty. otherwise just 3 or 4 times the headspace.