Oxygen Therapy
Oxygen Concentrators for Oxygen Therapy
An oxygen concentrator pulls in the air around you, filters out other gases, and delivers oxygen-enriched air through a nasal cannula. It is the most common way to use supplemental oxygen at home or on the go. Oxygen therapy is prescribed for people with low blood oxygen, called hypoxemia, often measured as a low oxygen saturation (SpO2) reading. It is used for conditions such as COPD, pulmonary fibrosis, or emphysema, and is different from CPAP therapy for sleep apnea. In the US, a prescription is required to buy an oxygen concentrator.
Portable vs. stationary oxygen concentrators
- Portable oxygen concentrators (POCs): lightweight, battery-powered units built for mobility and travel. Many are cleared for in-flight use, so check your airline's policy. Shop portable oxygen concentrators.
- Stationary (home) concentrators: larger units that run on wall power and deliver higher continuous flow for use at home. Shop stationary oxygen concentrators.
Pulse dose vs. continuous flow
Pulse-dose units release a burst of oxygen when you inhale, which conserves battery and keeps the device small. Continuous-flow units deliver a steady stream and are often needed for higher-flow prescriptions or nighttime use. Your prescription tells you which you need. If you use oxygen overnight, see our guide on sleeping with oxygen. For a deeper comparison, read portable vs. stationary oxygen concentrators.
How to choose an oxygen concentrator
Match your prescribed flow rate (measured in liters per minute), then weigh portability and weight, battery life, and whether you need pulse dose or continuous flow. If you are mostly at home, a stationary unit may be simpler; if you travel, a portable unit matters. See our best portable oxygen concentrators roundup and how an oxygen concentrator works.
Shop by brand
We carry trusted oxygen brands including Inogen oxygen concentrators, Drive DeVilbiss, Rhythm Healthcare, and OxLife. Inogen is one of the most recognized names in portable oxygen.
Cost, insurance, and accessories
Oxygen concentrators are FSA/HSA eligible, and coverage may be available through Medicare or private insurance for qualifying patients, so check your plan. Unlike rental programs from some oxygen suppliers, the concentrators here are yours to own. Need replacement parts? Shop nasal cannulas, batteries, and more oxygen therapy accessories.
