Introduction
HELiOS Marathon
TM
H850 Portable Oxygen Unit Home Use Guide
13
Figure 3.
HELiOS Marathon H850 Portable Oxygen Unit—
Rear View
1
Vent Valve
—Used to start and stop the filling process.
2
Liquid Oxygen Fill Connector
—Used to fill the H850 portable
oxygen unit with liquid oxygen.
3
Contents Indicator
—Used to display the amount of liquid oxygen
in the H850 portable oxygen unit.
4
Contents Indicator Strap
—Used to lift the H850 portable oxygen
unit to measure the amount of oxygen it contains.
1
2
4
3
