Our little (13" Dx 13" W x 14.5" H) unit is the best thing we could have asked for in our shop. You see, our metal shop is open to other areas of ADX, so the smoke/fumes that come from our welders can get a bit annoying. Much more importantly, our members' health is a huge concern for us, and the fumes from welding operations (Hexavalent Chromium - with a name like that it can't be good) can be downright harmful. When I, Eric, weld, I stick my nose right down in the work so my poor eyes can see what I'm doing. The 300 came out of the box, and in no time flat I had it fired up and tried it out. Well, I did a little test weld with the MIG, looked up and there was absolutely no smoke in the air. Zero, zip, nada.
This little box did it's job and we are thrilled to have it in our shop. If you come to ADX to weld, you are going to use it. That's right, we will make you use it because we care about your health. If you have your own shop you should have one of these as well!