I work at a EVAPCO (Manufacturers of Industrial & Commercial Cooling Equipment that makes water cooling towers, evaporators, etc. Big unit placed on tops of buildings. We do alot of Galv. metal and weld alot of the same.
Our welders use or are supposed to use what is called a defumer. Basically a large vacuum cleaner that sucks in the fumes and filters it. There must be some smaller type of unit that you can buy that does the same thing.
Also there are welding helmets on the market that have a blower system in them in order to keep the fumes away from you.
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