[TheForge] An oxygen generator?

[Barking Crow]

Clyde,

Whoa!  An oxygen generator?  Please explain that.  It replaces the bottle of
O2 for use with a torch?  I'm familiar with an oxygen generator for home use
by patients who need oxygen.  Its about the size of a small window AC unit
and makes a similar noise as it concentrates Oxygen from the air.  Is that
the same thing?  What are the advantages other than no carrying of bottles?
Down side?

Thanks,  Jeff Valentine

Also, what does an All States torch set up cost and why do you need Two?