With the pulse demand oxygen system, there is no drying of the throat which is always a problem with the constant flow systems. Because of the much reduced waste of the EDS system, I seldom had to refill my O2 bottle, even though we would use the cannula all the time above 10,000 ft. to ensure we arrived at destination refreshed. I highly recommend the Mountain High oxygen systems to all my customers. I am installing the EDS system in my C-195.

Mike DeHate
Test Pilot, etc.