...wow...if Racer couldn't get this to work w/o hassle, i despair!!. we got enough to deal with w/o well intentioned ignorance depriving us of a remarkably effective abortive, that for many makes possible a job, career, even sane life....
...one other thought besides state employment agencies...i cannot imagine that the major O2 suppliers (like Lincare, Air Gas, etc) do not have some sort of insight, advice, procedure to assist their customers out in the real world. i know the advent of the incredibly compact concentrators now make this kind of problem nearly moot.....but for most of us with CH that's not an option. i'd call around ...starting at corporate level....