I have an ordinary water filter between my compressor and air hose. I realize that water and particles will corrode and abrade the various moving parts in a typical air tool. Hence the filter.
But what about a plasma cutter? Doesn't the air simply go through a valve, a hose and then out the tip?
I searched the web for more info and found this one at welding-direct:
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Does anyone know if it is any good?
(If anyone is reading this twice, sorry, I also posted it on Hobart's forum.)