SUNMED 7900 User Manual

User Guide
The 7900 High Flow Bubble Humidifier is a disposable, single-patient use
device for use in health care facilities and home care. The humidifier is used
to provide additional humidity to oxygen therapy for flow rates at 6 to 15
liters per minute (LPM). The Bubble Humidifier has a 6 PSI safety pop-off
valve, which sounds and releases excess pressure if the oxygen tubing
becomes blocked.

Product Use

1. Wash your hands and remove the Bubble Humidifier from packaging.
2. Use sterile, distilled or boiled tap water. If using boiled tap water, cool water
to room temperature before adding to the Bubble Humidifier.
3. Unscrew the lid and add water to the maximum level marking (290 mL)
located on the side of the bottle.
4. Replace the lid. Ensure that the threads are properly aligned and
that the lid is screwed on tight.
5. Attach the Bubble Humidifier to an oxygen source, e.g. flowmeter, oxygen
concentrator or liquid tank.
6. Test for leaks. Turn the flow to 6 LPM and block the oxygen outlet port on the
Bubble Humidifier (A). A sound should emit within 5 seconds. If there is no
sound, check the lid and other connections for leaks. Repeat the leak test.
7. Attach the oxygen supply tubing for your nasal cannula or oxygen mask and
adjust oxygen flow to the prescribed setting.
8. Check for bubbles in the water. If there are no bubbles check
for leaks. If the device sounds, check for tubing obstruction.
9. If water level drops below the minimum level marking on
the Bubble Humidifier add more water.
10. Empty and replace the water in Bubble Humidifier daily.
7900 Bubble Humidifier Home Use
7900 High Flow Bubble Humidifier – 6 PSI Safety Pop-off –
6 LPM to 15 LPM
Oxygen Source
Oxygen
Outlet
Port
Diffuser
Oxygen Source
A
Oxygen Source
B
Oxygen
Tubing
To Patient
800-433-2797
Pressure Relief
Valve
Maximum
Water Level
Minimum
Water level
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