0 air flow case design

[MajinVegeta]

Has anyone seen the portable dry ice makers? All they are is a can of co2 feed into a metal box under pressure right.

Why couldnt someone do that for PC case cooling?

 

[Lizardman]

Whats that got to do with zero air flow?

 

[DongTran]

My chilli microatx case has 0 air flow lol