Originally Posted by
RoadTire
I'm thinking trying to get goggles that do seal on the bottom and have big vents on top. That way the hot moist breath will rise past and not come in from under.
Hmm, sounds interesting. Potentially simple, but you'll still need to deal with warm, humid air off the skin. Could be interesting, though that goggles are all about venting make me think its going to be a dead end.
Originally Posted by
RoadTire
And I cannot imagine electric fans working for long enough in 10 deg F weather.
They're designed for snowmobiling and skiing, have been around for years, and are USA military spec, so I don't know why you think they won't work in the subzero cold. No need to imagine; read about 'em.