i told my DR the other day that i was blowing glass. he told me to stop. i asked why. he said he had a patient a few weeks ago who had been blowing glass for 6 or 7 years and now has emphysema. i asked how the hell you get that blowing glass. he said he had NO IDEA. maybe from sucking in all those glass particles for all those years. i said we blow, we don't suck. and even if we did there are NO "glass particles". the stuff is damn near liquid. it's sticky not dusty. he say "well i don't know what or how you do it, but it's dangerous".
i told him to GTFO. told him how i welded galvanized and aluminum in confined spaces for years. you just gotta have good ventilation. he asked if i did. i said "yes". he said "oh, ok".
people.