On Wed, 27 Aug 2003 13:25:22 -0700, James Cubby Culbertson wrote:

Unfortunately, it's the dust that is so small that is virtually
invisible that is the most dangerous. As clean as you think your
keeping your shop with a shopvac, it's a very good possibility that
you're not doing much towards keeping the area healthy. Take a look
at Bill Pentz's website. He talks quite a bit about the health risks
and the level of attack needed to remove this small dust.
HTH
cc

Thanks for the heads-up, I had no idea.