Many medical conditions require oxygen therapy, typically provided by a device called an oxygen concentrator. These devices increase the level of oxygen delivered to users beyond what is naturally found in the air. Traditional oxygen concentrators are often large and cumbersome, making it hard for users to move far from home. For greater mobility, patients can use portable oxygen concentrators.
How They Work
The air around us is mostly nitrogen and oxygen with a few other gases. Portable oxygen concentrators draw in surrounding air and compress it. They use special filters to remove nitrogen, leaving air that is rich in oxygen. Most of this oxygen-enriched air is then delivered to the user, while some is used to clean the filters by blowing off any accumulated particles.
Types of Concentrators
There are two main types of oxygen concentrators: continuous flow and on-demand. Continuous flow concentrators provide a steady stream of oxygen, which is not very efficient because it is delivered even when the user is exhaling. On-demand concentrators release oxygen in bursts timed to match the user’s breathing, making them more efficient and allowing the units to be smaller. Many portable concentrators are on-demand types, but these may not always work well during sleep since breathing patterns slow down. To address this, some devices offer both continuous flow and on-demand settings for flexibility.
Traveling with a Concentrator
The FAA has approved portable oxygen concentrators for use on flights. To conserve battery life, it is advisable to book direct flights when possible. Notify your airline a few weeks in advance that you will be bringing and using the device on the plane, and ask about any specific rules or regulations. FAA regulations require that batteries last for the entire flight plus an additional 50% of the flight duration in case of delays. Always carry a backup battery when traveling.
Buying a Portable Concentrator
You can shop for portable oxygen concentrators online, avoiding the need to visit physical stores. Many portable units are designed for travelers. If you plan to fly frequently, choose a model that fits easily under an airline seat. Even if you do not fly often, ensure that your device is easy to carry in your car or whatever mode of transportation you use regularly.