"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.

Precise Flight.Nelson makes a small bottle for just under $400. I picked one up for
my mechanic at Oshkosh last year. It's packaged as an "emergency" bottle but it
will run a single person for a reasonable duration. She wanted it small as she's
flying an RV4.