Anything that says medical on it will automatically be higher priced. (Thank God for lawyers, malpractice insurance, and folks that try to make a living by suing others) I would assume that as long as you use a hepa filter, you'll be OK with the welders O2.
When we find out how many bodies you buried in the basement, will we be more shocked or disappointed at the number?
Zip ties are the duct tape of the 21st century
Bad Dog Brewing