My workman's comp made me get one of these about 10 years ago. I use it a lot myself when I weld in confined places and definitely if there is galvanized metal involved. http://solutions.3m.com/wps/portal/...nid=NT635G5R3LgsF3RH7CD92NglJ4CFGDB9XHbl

Make sure you use an oil less compressor or a blower that works like a shop vac. Shop air can contain carbon monoxide and should never be used for supplied air. A beer afterward can make you feel even better if you made a good weld or it can help deaden the pain if you made a lousy weld.