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Getting Started with Your Liquid Oxygen

When oxygen is cooled to a very low temperature (approximately -297°F), it changes from a gas to a liquid. We have provided you with special thermos-like containers, called home stationary units, which will keep the oxygen in liquid form. When the unit is turned ON, the liquid oxygen flows through coils that warm it. As the oxygen warms up, it changes from a liquid into a gas for you to breathe. You may have received a portable liquid unit, which can be filled directly from your stationary unit as needed.

Your representative will provide you with a filled liquid stationary home unit. You will be placed on a refill schedule based on your needs. Your representative will instruct you on how long your liquid oxygen will last.


1. Attach the cannula or tubing to the nipple adapter or humidifier outlet, making sure connections are tight.

2. Ensure a drain bottle is on the unit to collect any condensation or water that forms while using your oxygen.

3. You are now ready to set the liter flow on your home stationary unit.

Setting the liter flow on your flowmeter:

• If you have a ball-type flowmeter: while at eye level with the flowmeter, adjust the flow control knob until the ball is centered on the line of the correct liter flow setting.

• If you have a rotary or click-style flowmeter: rotate the dial until the physician-prescribed liter-flow appears.

DO NOT change your liter flow setting and/or how often you use your oxygen without consulting with your doctor.

Your liquid oxygen home unit is ready to use. Apply your cannula or mask as instructed by your representative.

IMPORTANT! When you are finished using the liquid stationary unit, turn off the flow by adjusting the flow control knob or rotary knob to the OFF or “0” position.