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Maintenance
HELiOS Marathon
TM
H850 Portable Oxygen Unit Home Use Guide
37
4 Maintenance
Monitoring Liquid Oxygen Level
To verify the oxygen contents in the reservoir, push
the blue button on the contents indicator. A green
light indicates the level is fine.
If the yellow light
appears, inform your oxygen supply company.
.
Figure 21.
Checking Reservoir Oxygen Contents
Cleaning Portable Oxygen Unit
Equipment
WARNING
Use a clean, dry, lint free cloth to wipe the fill
connector dry on both the reservoir and HELiOS
Marathon H850 portable oxygen unit.