Caire Freestyle Comfort Portable Oxygen Concentrator
  • 5 pounds
  • Pulse Flow Settings 1-5
  • 10” H x 7.3” L x 3.1” W
  • Up to 16 hours of Battery Life
  • 3 Year Warranty

CAIRE Inc. is one of the global leaders in oxygen supply manufacturing. For 50 years, they’ve worked to refine and improve oxygen delivery equipment which helps respiratory patients live more active and productive lives. 

The CAIRE Freestyle Comfort is the latest pulse dose portable oxygen concentrator by CAIRE Inc. This new oxygen machine offers a lightweight and ergonomic design that’s comfortable and easy to carry whether you’re just going for a walk in the park or taking a long trip across the world. 


UltraSense Breath Detection Technology

The Caire Freestyle Comfort offers an ultra-sensitive breath detection feature that makes this oxygen unit one of the most efficient and effective on the market. Rather than providing you with a constant stream of oxygen, the Freestyle Comfort delivers oxygen only when a breath is detected. This “bolus” of oxygen is precisely synced with your breathing ensuring no oxygen is wasted.

The Freestyle Comfort offers you 5 oxygen flow settings with a maximum oxygen output of 1050ml/min. This is enough oxygen for the vast majority of oxygen patients, and for some, it provides plenty of room to move up if their symptoms progress. The Caire Freestyle Comfort is one of the top-tier pulse flow oxygen concentrators when it comes to total oxygen output.

Long Battery Life

Unlike oxygen tanks, pulse flow portable oxygen concentrators like the Freestyle Comfort run on batteries. You’ll be happy to know that this oxygen machine will provide you with plenty of battery life to help you live life on your own terms without boundaries.

On the lowest flow setting with the 16-cell battery, you’ll experience an astounding 16 hours of battery life! That’s 3 more hours than top-of-its-class portable oxygen concentrators like the Inogen One G5. What this means is that you’ll be able to stay out and about for longer without having to come back home to recharge your unit.

Like with Inogen oxygen concentrators, you’ll be able to charge your Freestyle Comfort through either an AC or a DC outlet. Whether you’re at home or in the car, you’ll be able to charge your device wherever you please. The 8-cell battery has a recharge time of about 3.5 hours and the 16-cell battery has a recharge time of about 6 hours.

Comfortable and Ergonomic

If you’ve ever used a bulky and cumbersome continuous flow concentrator, you know that they’re anything but user-friendly. While they do offer you the oxygen you need, it doesn’t feel like they were built with your comfort in mind.

The Caire Freestyle Comfort got its name for a reason; it was specifically designed to be comfortable to wear and use. This oxygen unit has a curved design that fits the natural shape of your body. While you’re walking, it will stay at your side instead of sliding around and interfering with your natural movements. All of the buttons for your oxygen control as well as the power switch are conveniently located on the top of the unit and the batteries can be easily pulled off the bottom of the unit for replacement.

The Caire Freestyle Comfort is one of the lightest portable oxygen concentrators on the market, weighing in at just 5 pounds with the 8-cell battery and 6 pounds with the 16-cell battery. This means you’ll be able to carry your oxygen unit without ever experiencing back pain or unnecessary strain that can ruin your day.  

FAA Approved

The Federal Aviation Administration (FAA) is responsible for overseeing safety regulations for commercial airlines in the United States. Without FAA approval, you will not be able to carry your oxygen concentrator on a plane. Fortunately, the Caire Freestyle Comfort is already approved by this government organization. All you’ll need to do is get in touch with your airline of choice well enough of ahead of your flight.  


Caire Freestyle Comfort Specifications

5 pounds
Flow Rate
Pulse 1-5
10 inches
7.3 inches
3.1 inches
FAA Approved?
Battery Duration
Up to 16 hours

Battery Life

Flow Setting 8-Cell Battery 16-Cell Battery
1 8 hours 16 hours
2 4 hours 8 hours
3 3 hours 6 hours
4 2.25 hours 4.5 hours
5 2 hours 4 hours



Oxygen Output

Flow Setting
Oxygen Output (milliliters per minute)
210 ml/min
420 ml/min
630 ml/min
840 ml/min
1050 ml/min


What You'll Get

  • Caire FreeStyle Comfort portable oxygen concentrator
  • 1x Lithium-Ion Rechargeable Battery
  • AC Power Supply
  • DC Power Supply
  • Custom Carrying Case
  • Shoulder Strap
  • Tubing
  • Filter
  • Manual
  • 3 Year Warranty on Concentrator and Sieve Beds
Availability: Instock

Call 1-888-416-3855 to Talk to One of Our Respiratory Specialist