[Michael Pliska]

Jack,
If you haven't already done it, get yourself a paint respirator (the good kind that look like an old Top Fuel guy but in black), and wear it while sorting. I have lots of respiratory allergies as well as asthma, and my respirator does wonders when doing tasks like this.

That's great that you are donating them. One of these days I plan to sort out my collection (only dating back to the early 80's).