Oxygen concentrators are essential medical devices used to supply concentrated oxygen to various people whose lungs are unable to oxygenate the surrounding air sufficiently. These devices play a crucial role in the treatment of various respiratory disorders and are also used in non-medical contexts, such as high-altitude mountaineering. In this article, you’ll find out in detail what an oxygen concentrator is, how it works, its benefits and how to choose the right model to suit individual needs.


What is an oxygen concentrator?

An oxygen concentrator is a medical device designed to extract oxygen from ambient air, purify it and supply it to patients suffering from various respiratory problems. Unlike traditional oxygen cylinders, which require regular recharging, oxygen concentrators operate continuously, eliminating the need for frequent recharging.


How does an oxygen concentrator work?

The air filtration process

The oxygen concentrator draws in ambient air using a compressor. Once the air is captured, it passes through a filter that removes particles, impurities and other unwanted gases.

Oxygen compression

After filtration, the purified air is compressed inside the concentrator. This compression raises the oxygen concentration, while other gases are expelled from the unit.


Delivering concentrated oxygen

Once the oxygen has been concentrated, it is delivered to the patient via a nasal tube or face mask. The oxygen flow rate can be adjusted to suit the patient’s specific needs.

Advantages of using an oxygen concentrator

Ease of use

Oxygen concentrators are easy to use, making them convenient for patients who need a continuous supply of oxygen.

Greater mobility

Some models of oxygen concentrators are portable, offering greater mobility for patients, enabling them to go about their daily activities while receiving their treatment.

Lower costs

Compared with traditional oxygen cylinders, concentrators are more economical in the long term, as they don’t require costly refills.

No need for frequent refills

Being able to produce oxygen continuously, concentrators eliminate the need to worry about the level of oxygen remaining in the cylinder.


Oxygen concentrators are vital devices that significantly improve the quality of life of people with respiratory problems. By providing an efficient, continuous supply of concentrated oxygen, these devices offer patients greater freedom and independence. When choosing an oxygen concentrator, it’s essential to consider the patient’s specific needs, the mobility required and the duration of use.


FAQs (Frequently Asked Questions)

Q1: What is the typical service life of an oxygen concentrator?

Answer: The average service life of an oxygen concentrator is around 5 to 7 years, depending on the model and frequency of use.

Q2: Are oxygen concentrators noisy?

Answer: Most modern concentrators are designed to be silent, producing minimal noise levels during operation.

Q3: Can I travel by plane with my oxygen concentrator?

Answer: Yes, but it’s essential to check with the airline for specific rules on carrying an oxygen concentrator on board.

Q4: Comment savoir si mon concentrateur d’oxygène fonctionne correctement ?

Réponse: Les concentrateurs d’oxygène sont équipés de voyants et d’alarmes pour indiquer leur bon fonctionnement. Il est également essentiel de faire effectuer des contrôles réguliers par un professionnel de la santé.

Q5: Les concentrateurs d’oxygène sont-ils couverts par l’assurance maladie ?

Réponse: Dans de nombreux cas, les concentrateurs d’oxygène sont couverts par l’assurance maladie, mais il est recommandé de vérifier la couverture spécifique avec l’assureur avant l’achat.