Dry ice

[ifeelsofragile]

Anyone has any idea would dry ice work in closed environment?

Edit: holy shit it works! Just googled and found a lot of cases. I wonder why there hasn't been any topics related to this. It's quite easy to get

 

[ThisUnrest]

A few months ago, someone calculated the amount you would need and it was an absurdly huge amount to ensure effectiveness. I realize there are some people who have died by accident, but typically people on here want to be sure of the results.