On 12-1495, KATHY JOHNSON wrote to JAN THOMAS:
 KJ> Just a comment here...using a wire wheel on poopy concrete is BOUND
 KJ> to make dropping dust. As we all should know, this is not a good
 KJ> thing to inhale. If somebody *does* use a wire wheel or grinder to
 KJ> clean dirty perches, be sure to either do it outdoors, or wear a
 KJ> high-quality face dust mask to prevent inhalation of dust particles.
While I understand your concern, it's not yet proven (to me) that poop dust 
is harmful.  I could easily say that it is not helpful .... dust of most 
anykind (aspirin aside) is harmful to the lungs and should be avoided IMO ...
Rather than have another chemical scare (fire in the theather!) out there we 
need to be certain ...
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