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Dual Lumen Cannula
In order to breathe from your H300 or H850, you
must do so through a dual lumen nasal cannula.
This type of cannula has two connections to the
portable unit. One connection is used to detect
when you inhale, and the other connection is used
to deliver oxygen to your nose.
A single lumen cannula cannot be used on the
H300/H850. Your breath through the cannula pro-
vides the force necessary to open the flow control
valve and deliver oxygen. You must use a dual
lumen cannula and inhale through your nose on
ALL flow settings to ensure that oxygen is properly
delivered.
Note: Oxygen will only be delivered through the top
cannula barb.
Dual lumen nasal cannula operation: Oxygen is delivered through
top port. Breath is detected through bottom port.
HELiOS 300 & 800
Operating Instructions –
Filling
1. Clean the fill connectors on the H300/H850 and
the reservoir with a clean, dry, lint-free cloth.
WARNING: THE FILL CONNEC-
TORS MUST BE CLEAN AND DRY
WITH A LINT-FREE CLOTH ON BOTH
THE STATIONARY AND PORTABLE
UNITS TO PREVENT FREEZING AND
POSSIBLE EQUIPMENT FAILURE.
WARNING: DO NOT DEPRESS OR
DISTURB THE POPPET ON THE
FILL CONNECTOR WHEN DRYING
IT. THIS CAN CAUSE LEAKAGE OF
LIQUID OXYGEN.
2. Turn the flow control knob on the H300/H850 to
the off ("0") position.
3. Hold the H300/H850 with both hands and
position its fill connector over the reservoir fill
connector.
4. Lower the portable onto the reservoir until you
feel the connectors engage.
5. Place one hand on top of the H300/H850 and
apply a constant downward force.
6. Open the vent valve by pulling downward on the
vent valve lever to begin the filling process. You
will hear a hissing sound that is perfectly normal.
PN 21033264 B | User Manual
7 - ENG
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