Cool deal Makes it look real simple!
Dry ice is actually frozen carbon dioxide, evaporates into gaseous carbon dioxide (not water vapor) and is heavier than air, so it will displace air in an enclosed environment. It doesn't happen too fast, but lets say your in the car with the windows rolled up; you'll start to get dizzy.Yeah i was just shocked at how long it would have taken any other way.. Don't think you have to worry about ventilation as i think it's just water vapor.. only thing you really need is heavy duty gloves.. we were using welding gloves and i ended up pulling my hand out of them and using the whole glove, slick way to do it!