On 20 Jul 2005 10:43:08 -0700, wrote:

They ARE very stable, but not 'inert gasses'.

I stand corrected, the guy demo'd how to service automotive A/C
systems, I doubt he was a trained chemist. I for sure didn't know
enough chemistry to challenge, or even know the difference. ;-)

I was just impressed that anyone would inhale the stuff.

Corky Scott