How To Use Your H850 Personal Oxygen System
push down
and hold
Figure 2: Filling the H850 Portable
Note: Fill time is usually between 60 and 80 seconds
when the H850 Portable is empty. The amount of
time to fill the H850 Portable depends on the
amount of oxygen remaining in the H850 Portable.
WARNING: Do not leave the H850 Portable unattended
during the filling operation.
7. When you notice a change in the sound of venting gas
followed by a dense, white vapor forming around the
Reservoir cover, close the H850 Portable vent valve
by returning the vent lever to the upright position.
22
vent valve
H850 Home Use Guide