c32d5b9c_Alert__Welding_Fumes_and_Gases__When_you_are__
[your work creates:] Hazards in confined space Serious to Deadly: reduced oxygen, even suffocation from lack of fresh air [When you are …] 
Welding using shielding gases like argon
eLCOSH : CPWR Hazard Alert: Welding Fumes and Gases
When you are …