We've happily settled my father in a very nice Assisted Living facility in Texas. He has to be on Oxygen 24/7 and is having a big hassle pulling around all the cording he needs to allow him to get around his little "apartment". He talked to someone who suggested a portable concentrate he could hook onto his wheel chair that would provide him Oxygen no matter where he goes. Anyone have any dealings with portable oxygen concentrators..opinions? Suggestions? Thanks!