[oooyay]

This is what I wear for carpentry/wood working. It's almost identical to the mask I wore in the military for CBRN just different filters and far lighter. Suggestion to look for masks that have larger outter and inner seals if you have glasses or low cut facial hair/stubble respectively as they'll continue to seal.

[Doxin]

I believe 3M makes a mask that pretty much doesn't have a seal at all, instead relying on the positive air pressure to keep crap out. That has always seemed like the best solution comfort-wise to me. Anything that seals to the face will end up sweaty at the seals. Should work with basically any variety of lush woodworking beard too.