How Does continuous flow portable oxygen concentrators Work?

03, Mar. 2026

 

Getting Started with a Portable Oxygen Concentrator - Lung.org

Many patients find using portable oxygen concentrators, or POCs, to be helpful when needing supplemental oxygen away from home.

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POCs are generally light, small and quiet.

They work similarly to home concentrators by extracting oxygen from the surrounding air and turning it into condensed oxygen for you to breathe.
There are several models of portable oxygen concentrators on the market.

POCs deliver oxygen by pulse dose in bursts. Some units can also deliver oxygen continuously at a steady rate. The pulse dose is delivered each time you inhale.

Your pulse dose may be different than your continuous flow setting, so make sure to check with your healthcare provider to ensure that your oxygen flows are meeting your needs.

A POC uses a rechargeable battery that is connected to the bottom of the device. Your battery life will depend on your flow rate and how fast you are breathing. POCs can be conveniently recharged by plugging the cord into a power source to refill the condenser. You can purchase a car adaptor to recharge the unit while driving.

To get started using your POC, attach your nasal cannula. Turn on the device and set the flow prescribed by your doctor. You can look at the display to see how much battery life is remaining. Always carry an extra battery if you think you might be out of the house for a long time.

For more information, please visit continuous flow portable oxygen concentrators.

Care for your device by weekly with mild dish soap and water. Be sure not to get water in the nasal cannula tubing and replace it if it is damaged. You can get replacement tubing from your oxygen supplier. Follow the directions from the manufacturer for cleaning the filter for your device.

It might be daunting at first to get started with a new oxygen device, but with practice, you will gain confidence and adjust to life with oxygen therapy.

For more information, visit Lung.org/oxygen.

How It Works | Pulse vs. Continuous Flow - CAIRE Inc

How It Works

Pulse VS. Continuous Flow

CAIRE’s product line of oxygen concentrators filters the ambient air around us in order to guarantee you are never left without the oxygen you need.

Pulse Flow

With every inhale of your breath, CAIRE’s pulse flow technology delivers a “bolus”, or breath, of oxygen when you need it most. Our pulse flow senses the pressure of each breath, through the nasal cannula, to deliver the exact dose you need at the exact moment you need it.
  • FreeStyle Comfort
  • Eclipse 5

Continuous Flow

When you need a constant, steady and reliable flow oxygen, you need CAIRE’s continuous flow technology. Set your device to the liter by minute prescribed by your doctor and rest assured that you are receiving an uninterrupted stream of oxygen.
  • Eclipse 5
  • Companion 5
  • NewLife Elite
  • NewLife Intensity

CAIRE Innovation

CAIRE pioneered the technology behind oxygen therapy, allowing our technology to always be one step ahead.

autoSAT® Technology

Picture yourself relaxing at home on the couch, then imagine yourself walking to the mailbox or even taking a walk. Depending on your activity level, your rate of breath changes. With CAIRE’s autoSAT technology, our oxygen concentrators adjusts oxygen output based on your breath rate to guarantee the prescribed amount of oxygen is delivered with each breath. autoSAT technology is available on the Eclipse 5® product.

UltraSense®

Choosing a CAIRE product gives you the confidence of UltraSense technology. We pioneered the most sensitive pulse dose trigger to detect the pressure of breath, and release the pulse of oxygen you need, when it is most critical. This advancement allows more patients to use our technology than ever before.

Fixed Minute Volume

Fixed minute volume technology allows for an oxygen user to receive the oxygen they need, at precisely the right amount, in an exact moment in time. CAIRE’s fixed minute volume technology is the most sensitive on market, adjusting the flow the oxygen to match a person’s needs based on the pressure of their breath.

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