BTW, neoprene face masks are easily found on eBay or at motorcycle shops. The problem is that since most are made for motorcycles, they have these wimpy little sets of holes to breathe through; you'll suffocate if you have to do any actual work wearing one. I just took a pair of scissors to mine.

Here's the scary man after a ride last winter. The center of the mouth hole is not cut out because there's a seam there and I was afraid it'd unravel if I cut it. I may just try gluing it and trying to cut it anyway, even like that it's not quite enough room to breathe.

Oh, the blue thing is an additional layer, just basically a stretch poly tube. I wear it by itself from about 40 down to 25 or so. I think it was about -20*F that day.