Quote Originally Posted by marru View Post
No, do not purge with refrigerant. Not only its bad for the environment but its illegal.
If you want to die, purge with refrigerant. While brazing, the flour reacts to hydrogen fluoride ... you smell it directly and it "bites" in your eyes! DON'T TO THAT! It will serious hurts you!
There is a hydrocarbon you can use as a purging gas which everyone has it at home, but I'm not allowed to say this here...

Officer Walt what do you think?