"Guy Byars" wrote in message
...
On a trip last week, we flew for 3 hours at 10,000ft. Afterward my wife
complained of fatigue and at times during the flight she complained that
she
couldn't "get enough air". I am thinking that supplemental OX for her
would
be helpful. I checked the Aerox systems and the other systems, but they
seem pricey.

Given that this is a comfort issue and not a safety issue and is only for
a
passenger, are there any other cheap portable OX systems available.
Medical
systems perhaps?

If it was my wife and she was prepared to fly with me, then I would not
skimp on the cost. Besides which her comfort is definitely a safety issue
for me, my safety when we get home.