On Sat, 24 Feb 2007 16:10:38 GMT, "Vaughn Simon"
wrote:


"Bill Daniels" bildan@comcast-dot-net wrote in message
...


Negative:
Short shelf life . i.e. "use it or lose it".
Difficult support system. Essentially, LOX must be manufactured on the
gliderport for it to make sense. Such "air reduction" devices do exist for
medical LOX but they are expensive.

I have a bit of experience using medical lox and the above need not be
true. Patients who use lox keep a device at home that looks a lot like at beer
keg. A guy in a truck comes around every week or two to top the "keg" off. The
oxygen can be used straight from the "keg" or transfered to a portable oxygen
system.

I take it the capability to fill portable containers is the motivation
for using lox, as opposed to using a concentrator?

rj