"Tim Mara" wrote in message
...
look at my web page (copied from Aeox)
http://www.wingsandwheels.com/page35.htm and the flow charts for even
normal
constant flow systems (using Oxysaver cannulas) will show you over 46 hours
usage at 10,000'....and over 25 hours at 15,000'
all without using any electronic devices....the advantage (small) of the
EDS
is that you don't need to set the flow rates manually to get these higher
durations.but the simple and reliable constant flow systems cost under 1/2
as much as the electronic systems and are simple and can easily fit all the
components )(less bottle size of your choice) into a large sandwich bag!
tim
Please visit the Wings & Wheels website at:
www.wingsandwheels.com