[Shop-talk] Basic MIG Welding questions

[Randall]

> What does argon smell like? 

In theory it's odorless.  In practice, it seems to smell a lot like air that
has been stored in a rusty, dirty old tank.

Although you wouldn't want to breathe it continuously, even a big lungful of
pure argon isn't going to hurt you, any more than holding your breath for a
second or two will.  Ordinary air has more argon than CO2.

Randall