[Crex]

Borrow someones' portable blacklight then turn off all the rest of the lights.......scare the heck out of you and for good reason. No way to purge that stuff from your lungs.

Knife making is a much more hazardous occupation than most realize just from all the dust and usual toxins we handle. Then add a forge - fire, fumes, air born particulates, oxygen depletion, explosive gases, etc. the list goes on. It's a wonder we survive. Sharp pointy things is the least scary part!

Stay safe Brother and keep on thinking.