I also used a Viking 3350 with a 3M respirator but cant tell which model it was. Probably one someone else already mentioned. Nice hood and respirator combo, but I haven't used some of the really expensive hoods. I did like the Viking 3350 a lot though.

I have a Scotchman Cold saw 275 LT with 3 phase rotary phase converter and 2 extra blades. $2,500

Self and YouTube taught Mig and Tig welder. I had a small fabrication shop here in the DC metro area. Started with odd jobs like lawn mower repairs, outdoor furniture repair, even did some much bigger stuff like a spring loaded folding ramp for a box truck used in landscaping. Figuring those springs...