Figures were just something Namreg 58 claimed in his previous post (above). Maybe if you look through enough of the other headings / links that show up on the page via the link he posted you will, but I only went through a couple there and didn't find his figures. Not saying he made them up by any means, but it's a waste of time trying to reason with a 'denier' anyway.
And 'inhaling flue gas', well I haven't heard of that mix, but I assume a experienced fill station may be able to blend it up for you, should you so desire of course.