Operating Your Stationary Reservoir

Although most reservoirs have a built-in flowmeter, some models may require that the flowmeter be attached to the reservoir outlet tube. If your model requires a flowmeter, attach it by turning the threaded cap onto the outlet tube until it is tight.

If recommended, attach a filled humidifier bottle.

Center the threaded cap on the humidifier bottle under the threaded outlet tube on the reservoir. Turn the cap on the humidifier bottle until it is tightly screwed onto the outlet tube. Attach the oxygen tubing to the nipple outlet on the humidifier bottle lid.

If you are not using a humidifier bottle, you should attach a nipple valve to the reservoir outlet tube and attach the oxygen tubing to the nipple outlet.

Adjust the oxygen flow rate by turning the liter control knob until the flow is at the prescribed number.

Rotary Flow Control

Turn the dial until the prescribed liter number appears and the switch clicks into position.

Flowmeter with Liter Tube

Adjust the liter control knob until the middle of the indicator ball is at the prescribed number. Your doctor has prescribed the oxygen flow rate for you.

Nasal Cannula

Insert the two prongs of the cannula into your nostrils. Make sure the prongs face upward and curve into your nostrils.

Slide the tubing over and behind each ear.

Adjust the tubing to fit comfortably under your chin by sliding the adjuster upward. Be careful not to adjust it too tightly.

Oxygen Mask

Place the oxygen mask over your mouth and nose. Slide the loose elastic strap over your head and position it above your ears. Pull the end of the elastic on each side of the mask until the mask fits comfortably. Pinch the metal nose strap to fit snugly around your nose. This will prevent oxygen from blowing into your eyes.

You should use your oxygen for the number of hours your doctor has prescribed.

When you have finished using your oxygen, you should:

Remove the nasal cannula or oxygen mask.
Turn the liter control knob OFF.
You should also check the amount of oxygen remaining in your stationary reservoir daily so you know when to order a refill.

Needle Gauge

The position of the needle will tell you approximately how full your reservoir is. You may have to push a button on the top of the unit so the face of the gauge lights up and the needle registers.

Bar Gauge

Depress the red button on the top of the reservoir. Read across the top of the lighted bar to the scale at the right.

Weight Scale Base

The position of the metal pointer on the scale under your reservoir will tell you approximately how full your reservoir is.

Operating Your Portable Unit

The following step-by-step instructions will help you operate your portable liquid oxygen unit.

Check the amount of liquid oxygen in your unit. When the portable unit is not in use, the liquid oxygen it contains will evaporate within 24 hours. Be sure your unit has enough oxygen in it to accommodate your expected usage time. If you are unsure, contact your Wright & Filippis respiratory department.

Needle Gauge

The position of the needle will tell you approximately how full your unit is. You may have to press a button to light up the meter face and cause the needle to register.

Bar Gauge

Press the red button on the top of the unit. Read across the top of the lighted bar to the scale at the right.

Attach the oxygen tubing to the oxygen outlet on the side of the unit.

Adjust the oxygen flow by turning the knob until the prescribed liter number appears and the switch clicks into position. Be sure not to set the control knob between number positions or no oxygen will flow. Your doctor has prescribed the oxygen flow rate for you.

Refilling Your Portable Unit

To refill your portable liquid oxygen unit from the stationary reservoir, follow the steps below.

Wipe the filling connectors on both the portable unit and the stationary reservoir with a clean lint-free cloth. These fittings must be dry. Moisture could cause the units to freeze together.

Turn the flow control knob on the portable unit OFF.

Attach the portable unit to the stationary reservoir at the filling connectors. Some units refill from the side of the reservoir, while others refill at the top of the reservoir.

Side Mount Refill

Tilt the portable unit counter-clockwise to a 45-degree angle.

Insert the portable unit connector into the reservoir connector.

Rotate the portable unit clockwise to an upright position until the pin locks into place. You should not have to force it to rotate.

Top Mount Refill

Center the portable unit connector over the reservoir connector.

Lower the unit into the shaped recess or onto the connector. Once the unit is resting on the connector, hold down firmly until the filling process is complete.

Open the fill valve by either pressing the fill button or using a key (depending on your model). This valve is found either on the reservoir or on the portable unit. This will start the filling process. As the unit is filling, you will hear a hissing noise. When the unit is full, the hissing noise will change and you will see a small cloud of white vapor at the connection.

Always remain with the units while filling. Fill time is approximately two minutes.

When the unit is full, slowly close the fill valve.

Disengage the portable unit from the stationary reservoir.

If the unit does not separate easily, do not force it. The units may be frozen together. Wait until the units warm up and they will separate easily.

DO NOT TOUCH any of the frosted parts of the connectors. Liquid oxygen can cause frostbite to the skin.

Reattach the oxygen tubing to the oxygen outlet on the portable unit. Your unit is now ready for use.

Liquid oxygen will slowly evaporate from a portable unit. To avoid excess waste, fill the portable unit just before use.

Always keep your portable in an upright position. If the unit is accidentally tipped over, you may hear hissing and see oxygen vapor escaping. Place the unit upright immediately.

Always store the portable unit in a well-ventilated area.

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