Quote Originally Posted by Troll Hunter View Post
The exhaust of a shop vac, with the motor/filter section out of the body, routed to a modified regular welding helmet will substantially reduce any fume inhalation by the wearer. I wouldn't recommend this for a professional/heavy duty welder, but for the occasional hobbyist, like myself, this should be OK. Of course, the air inlet should be in an area with uncontaminated air.
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Mike
This is my thought as well, use a small, perhaps even 12v car vac? And they let people play rugby and allow boxing, skydiving, mountaineering and goodness knows what else that is blatantly dangerous. Just little people sitting in small offices trying to warrant their existence.