Keith
I tried those paper masks and they are really disposable. In fact, they
should be disposed of before being used. Now I use a dual filter mask with
NIOSH approval for dust and vapors. I am not sure of the brand and I have a
half hour or more of shovelling to reach the shop. The mask is good for
finish work as well as for sanding dust.

--
God bless and safe turning
Darrell Feltmate
Truro, NS Canada
www.aroundthewoods.com