I use a supplied air helmet. We have an air conditioned room that we in which keep our welding stuff in to control the humidity. We have two supplied air pumps. One is nothing more than a glorified vacuum cleaner, the other is an oil less compressor. We place them in the cooled room. The cool air is nice when you are welding. When we bought ours, they were around $600. Looks like hey are higher now. http://www.envirosafetyproducts.com/product/3M-Fresh-Air-II-Supplied-Cool-Air-System.html

Last edited by crenwelge; 05/05/2009 5:46 PM.