Home medical oxygen supplements the oxygen naturally breathed in from the atmosphere. Breathing supplemental oxygen increases the oxygen level in the blood, which is then transferred to the cells and ultimately into energy. Supplemental oxygen usually reduces breathlessness and other symptoms such as fatigue, headache and poor appetite, just to name a few. An individuals' level of activity will often determine the kind of home medical oxygen system that is right for them.
Liquid Oxygen System
Oxygen changes from a gas to a liquid at very cold temperatures. When the oxygen becomes warm, it becomes a gas again. A liquid oxygen system includes a stationary unit that stores liquid oxygen and stays in the home. The system includes a small, portable tank that attaches to the larger stationary unit for filling. The larger unit is used at home, and the smaller tank can be used for outings away from home, such as in the garden or during walks, allowing a patient to be much more mobile. The smaller tank hangs from a strap that drapes over the shoulder for easier carrying or rides in a lightweight aluminum cart with wheels. According to the Cleveland Clinic, the downside of liquid oxygen is that it will eventually evaporate, even within a closed system.
Compressed Oxygen System
A compressed oxygen system stores oxygen as a gas in a tank. A flow meter and regulator attached to the tank allows users to adjust the oxygen flow based on their prescription. Tanks vary in size, from very small, portable tanks that travel with an individual, such as over the shoulder or attached to a wheelchair, to very large tanks stored in the home. Attaching a humidifier to a larger tank and using it at night will help to alleviate irritation to the nose and throat.
Oxygen Concentrator
An oxygen concentrator is an electrical device that pulls air from the atmosphere and extracts and separates the oxygen from the other gases. The device is approximately 19 by 26 by 15 inches, but different brands can vary in size. Turning on the unit allows the oxygen to move through a flow meter to a nasal cannula or oxygen mask. Lincare, a durable medical goods company, suggests changing the filters on a regular basis for optimal performance.
Combination Home Medical Oxygen Systems
Combination systems provide the most convenient use of home medical oxygen. According to the Cleveland Clinic, choosing the correct system depends on how active the individual is and what liter flow the patient uses. The first combination consists of an oxygen concentrator that stays at home; a small, portable unit for short trips and working around the house; and a larger E cylinder and cart for longer trips away from home. The second combination may include an oxygen concentrator and a liquid oxygen stationary unit with a portable liquid oxygen canister. Durable medical equipment companies configure most systems based on activity level, liter flow and how often the system is used.
