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Types of Portable Oxygen

People suffering from breathing problems such as chronic obstructive pulmonary disease (COPD) and emphysema frequently receive oxygen therapy. Oxygen therapy increases oxygen supply to the blood, easing shortness of breath and increasing stamina. Portable oxygen systems allow the user to remain at home and they promote independence. Users have the ability to participate in activities such as shopping, dining out and travel.

  1. Compressed Oxygen System

    • Oxygen is stored in gaseous form in aluminum cylinders. Cylinders come in a variety of sizes. Large cylinders are commonly used as stationary systems in the home, while smaller cylinders may be transported using a rolling cart or a bracket placed on a wheelchair. Strength and stamina of the user should be considered when choosing the size of a portable tank. Large tanks are heavy, making them difficult to transport in and out of cars and more difficult to control while walking. The compressed oxygen system does not require electricity. The oxygen is stored under pressure, releasing a constant flow of oxygen from the tank. Flow meters and regulators on the tank control the flow. Patients may use oxygen-conserving devices to reduce waste. Gas is released when the user inhales and cuts off during exhale. Doctors prescribe this system frequently when the patient does not require constant oxygen therapy.

    Liquid Oxygen

    • A liquid oxygen system is comprised of two units.. A large stationary reservoir stores the liquid oxygen at a cold temperature. As the liquid is released, it warms and converts to gas as it is delivered to the user. A portable canister is filled from the reservoir, allowing the user greater mobility. Weighing an average of 5 to 13 pounds, they can be carried by a strap over the shoulder or transported on a roller cart. Liquid oxygen systems are smaller than compressed systems. More liquid oxygen can be stored in the same amount of space as gas requires, but liquid oxygen evaporates over time. A service technician monitors the oxygen reservoir and refills it as needed.

    Oxygen Concentrators

    • An oxygen concentrator is an electronic device that produces oxygen by extracting air from the environment, concentrating the oxygen and removing gases. Since the unit creates its own oxygen supply, it does not require refilling. Varying in size, the unit is typically on wheels for ease of movement. Extra tubing allows the user greater mobility, but may present a tripping hazard. Patients can find smaller, offering the user greater independence away from home. Because oxygen concentrators depend on a power source, a back-up cylinder should be immediately available in case of a power failure.

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