Larry Jaques wrote:

(...)

ALL DUST, organic and inorganic, is deadly to human lung tissue.

Perhaps 'deadly' is too strong a word? I've cleaned up some
*extremely* dusty places without protection and suffered coughing,
wheezing and other entertaining sound effects and I'm still kicking.

If I had it to do over, I would have donned a respirator but
I'm older and more cowardly now.

Lesson learned. Catastrophe luckily avoided.

--Winston