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Portable Oxygen Concentrator Resource Center

The Best Portable Oxygen Concentrators of 2019-2020

Posted by Duke on Dec 1, 2016 1:38:00 PM

The Best Portable Oxygen Concentrators (1)

This post was updated: 11/5/2020

Well, 2019 has wrapped up and I think we can all agree that it's be one crazy year, even in the oxygen industry... We've seen some groundbreaking technology get released, we've seen a couple of brand new concentrators get released, and that's just the tip of the iceberg when we look forward to 2020.


With the new units being released and the new technology being released, we want to take a look back on 2019 and look forward to 2020 with a review of the best portable oxygen concentrators on the market. 


In this post we will cover the best overall pulse flow portable oxygen concentrator, the best overall continuous flow portable oxygen concentrator and then some "best in-class" units as well. 


Here are the best portable oxygen concentrators for 2019-2020:


Best Overall Pulse Flow Portable Oxygen Concentrator: Caire Freestyle Comfort

Caire Freestyle Comfort Side View

The Caire Freestyle Comfort was released at the beginning of 2020, and it has quickly become top favorite in the portable oxygen community since it hit the market.

One of the biggest reasons Caire is such a trusted brand in the oxygen industry is due to the fact that they manufacturer units for the brave men and women in the military!

Because when it comes to quality, reliable and effective portable oxygen concentrators, Caire is at the top of the list.

So if you are looking for portable oxygen concentrator that is well built and extremely reliable, the Caire Freestyle Comfort portable oxygen concentrator should be considered!


What Makes the Caire Freestyle Comfort the Best Pulse Flow Portable Oxygen Concentrator?

The Caire Freestyle Comfort is almost in a class all of its own when comparing it to other units.

It's small, light weight and easily one of the most comfortable portable oxygen concentrators to offer a pulse flow of 5, it gets exceptional battery life with the option to upgrade for longer portable operation, and it's easily one of the most reliable portable oxygen concentrators on the market. 

By combining a compact design while keeping it lightweight, you can get back to living your life without being weighed down.


Oxygen Output

The single most important factor to consider when purchasing or renting a portable oxygen concentrator is the oxygen output of the machine and if it will meet your medical grade oxygen requirements.

It offers pulse flow settings 1-5 and it's equipped with the Chart UltraSense technology will equip you with a versatile oxygen delivery profile that satisfies your respiratory demands.

What the UltraSense technology means for you is that the Freestyle Comfort's compressor is actually able to adjust the oxygen bolus to automatically match your increased or decreased breathing rate. 

Meaning that whether you are relaxing and reading a book, or doing your daily dose of exercise, the Caire Freestyle comfort will meet your varying oxygen requirements.


Size and Weight

If you are wanting a high pulse dose of 5 in a lightweight and compact unit, the Caire Freestyle Comfort is one of the smallest and lightest units on the market today.

With the single 8-cell battery the G3 weighs a mere 5 pounds and stands just 10" H x 3.1" D x 7.3" W. 

When you're battling a respiratory disease like COPD or cystic fibrosis, the size and weight of your oxygen concentrator can make a huge difference for your daily lifestyle.

Larger, heavier concentrators can be difficult to transport and may require a lot of your energy or even a cart, but that's simply not the case with the Caire Freestyle Comfort.

Weighing 5 pounds, the Freestyle Comfort requires very little energy from you to carry and it won't wear you out as easily as something like a 10 pound concentrator.

The Freestyle Comfort comes with a carrying case that allows you to easily go from place to place, it also features a convenient padded shoulder strap for ultimate comfort on the go!


Battery Life

Caire Freestyle Comfort Control Panel-1

Battery life tends to be one of the most important deciding factors for our customers and the Caire Freestyle Comfort gets some of the best battery life on the market.

Specifically you can custom tailor your battery life to your personal needs, with two different battery options available, the single 8-cell battery and the double 16-cell battery. 

The single 8-cell battery gets up to 4 hours of use on a single charge on a setting of 2 and keeps the Caire Freestyle Comfort at a true 5 pounds.

While the double 16-cell battery gets up to 8 hours of use on a single charge using a setting 2 and only adds 1 pound to the total weight of the machine. 

With multiple battery options and up to 8 hours of use on a single charge, the Caire Freestyle Comfort is perfect for anything from everyday tasks to traveling across the country.


Honorable Mention

There were a couple other concentrators that came close to being named the best pulse flow portable oxygen concentrator, but the Caire Freestyle Comfort is the total package. Here are the two other concentrators that the Freestyle Comfort beat out for the title of "Best Pulse Flow Portable Oxygen Concentrator"


2nd Place- Inogen One G5

3rd Place- Respironics SimplyGo Mini


Best Overall Continuous Flow Portable Oxygen Concentrator: SeQual Eclipse 5 


When it comes to continuous flow portable oxygen concentrators, they all have similar features and the unit specs are comparable across the board. So picking the top unit in this category wasn't easy, but the SeQual Eclipse 5  barely edged out its competitors.


What Makes the SeQual Eclipse 5 the Best Continuous Flow Poratble oxygen Concentrator?

The SeQual Eclipse has quietly risen to the top of our list this year. Mostly because of the SeQual Eclipes 5 being a true Personal Ambulatory Oxygen Sytem. Specifically, it has a high oxygen output in both pulse and continuous flow settings, it comes with an adjustable travel cart with a telescoping handle, offers CPAP & BiPAP functionality, and it's extremely durable concentrator that will meet your oxygen demands. 


CPAP & BiPAP Compatible

Are you one of the many oxygen users who also leverages a CPAP or BiPAP machine?

Well with the SeQual Eclipse 5 you nightly routine will be simplified, thanks to SeQual making it extremely easy for you to use your CPAP or BiPAP machine in congruence with your oxygen therapy.


Oxygen Output

The SeQual Eclipse 5 offers both continuous flow oxygen delivery and pulse flow oxygen delivery meaning it can accommodate the majority of oxygen patients 24/7/365. 


It offers continuous flow settings 0.5-3.0 LPM and pulse flow settings 1-9 making it perfect for everyday use, traveling, and anything in between! As stated above, you can use this machine 24/7/365 as long as you can plug it into the AC or DC power supply or as long as you have charged batteries.

When the SeQual Eclipse 5 is plugged into the AC or DC power supply it can provide you with an endless supply of oxygen, making it the perfect unit to use for your nighttime oxygen.


Size and Weight

When it comes to continuous flow units, the majority of them weigh over 15 pounds. This is because a larger compressor and motor are needed to produce a continuous flow of oxygen.

With that being said, the SeQual Eclipse 5 isn't the smallest or lightest continuous flow portable, but it's very similar in size to most continuous flow units. 


Standing 19.3" H x 12.3" W x 7.1" D , the Eclipse 5 can fit underneath the seat on an airplane to make traveling as easy as possible. The included adjustable travel cart makes it so you never have to deal with the hassle of carrying your oxygen concentrator. And the foldable handle makes storing the Eclipse 5 on the cart a breeze.


The SeQual Eclipse can operate using one battery at a time. With the battery installed, the Eclipse 5 weighs in at 18.4 pounds.


Battery Life


With continuous flow portables you have two different battery ratings; one for pulse flow settings and one for continuous flow settings. When using the machine on continuous flow, the compressor and motor are constantly running, which uses more battery life. 

The SeQual Eclipse 5 is one of the top continuous flow portables in terms of battery life. Here is a chart with the expected battery life of the SeQual Eclipse 5:

Flow Rate Pulse Flow Battery Life Continuous Flow Battery Life
1 Up to 5.4 Hours Up to 3.7 Hours
2 Up to 5.1 Hours Up to 2.0 Hours
3 Up to 4.9 Hours Up to 1.3 Hours
4 Up to 4.0 Hours N/A
5 Up to 3.7 Hours N/A
6 Up to 3.5 Hours N/A
7 Up to 2.5 Hours N/A
8 Up to 2.0 Hours N/A
9 Up to 1.7 Hours N/A


Honorable Mention

Although there aren't as many continuous flow portables as there are pulse flow units, this was still a hard decision to make. Here are the two other machines that were in contention for the "Best Overall Continuous Flow Portable Oyxgen Concentrator":

2nd Place- Respironics SimplyGo


Best of the Rest!

Those are just two of the many portable oxygen concentrators that are available. And this post isn't meant to knock the other concentrators on the market. With that being said, here is a short list of portable oxygen concentrators that deserve consideration when you are in your decision making process: 

- Best Overall Pulse Flow Portable Oxygen Concentrator:

Caire Freestyle Comfort


- Best Overall Continuous Flow Portable Oxygen Concentrator:

SeQual Eclipse 5


- Smallest Pulse Flow Concentrator:

Inogen One G4


- Smallest Continuous Flow Concentrator:

Respironics SimplyGo


- Pulse Flow Concentrator w/ Longest Battery Life:

Inogen One G5


- Continuous Flow Concentrator w/ Longest Battery Life:

SeQual Eclipse 5


- Pulse Flow Concentrator w/ Highest Oxygen Output:

Inogen One G5


- Continuous Flow Concentrator w/ Highest Oxygen Output:

SeQual Eclipse 5



Even though this post highlights the best portable oxygen concentrators of 2019-2020, you should be extremely objective when deciding which unit will work best for you. Your primary use of the concentrator should play a major role in your decision making process. Whether you plan to use your concentrator every day, for traveling only, or for special occasions you need to find the one that will best suit your needs. 

We also have a couple different blog posts you can check out to help make it easier to find the best unit for you:

Top 4 Pulse Flow Portable Oxygen Concentrators

Top 4 Continuous Flow Portable Oxygen Concentrators

You can download our FREE portable oxygen concentrator comparison cheat sheet and easily compare every concentrator side-by-side. Or you can always give us a call and speak with a respiratory specialist to get all of your questions answered!

POC Comparison Sheet Download

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