Christian McArdle wrote:
http://www.machinemart.co.uk/product...0&r=2152&g=120

I use something similar. I've always fancied the next stage up, which is a
"forestry helmet" that uses mesh instead of plastic. No chance whatsoever of
that misting up! (Although it will presumably not be very effective at
eliminating dust).

And entirely useless for stopping small, high-velocity sparks.

I have in the past used an aquarium airpump, some 5mm airtube, poked
into the side of some goggles.
Worked well.