Also - I believe HALON has to be used in a fairly air-tight space. When one of the Datacenters I worked in years ago had a HALON system, they actually would come in once every few years and pressure test the room to make sure the HALON would even work.

IF your in an accident, and windows are shattered, I think all your gonna do it make a cloud, scare the heck out of anybody who was even thinking about helping...

What do they use in NASCAR? I think it's fire-retardant clothing only right?