Salter Labs 7900 Technical Bulletin

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Use
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 to the oxygen outlet port (B) 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. Apply your high flow nasal cannula or oxygen mask.
10. If water level drops below the minimum level marking on the
Bubble Humidifier add more water.
11. Empty and replace the water in Bubble Humidifier daily.
(Continue on the next page.)
7900 Bubble Humidifier Technical Bulletin
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
SLML 112 Rev C 03/2019
Pressure
Relief
Valve
Maximum
Water Level
Minimum
Water level
1