Yes, I posted this on here about a month ago. I've been welding over 60 years, and no one ever said anything about it, even went to 2, welding schools, and nothing was ever mentioned, took welding in high school, no mention there either. I do, however, know about phosgene gas, I spent 2 years in Washington, DC, and we were taught, and shown what it will do, it'll kill ya too dead to skin, in a heartbeat. Guess I've been lucky, I've been known to wash the oil and grease outa cracks in aluminum and magnesium, and go right back at welding it up. Hope no one has any problem with it, it isn't funny, what will happen. Bob