According to Grand View Research, in 2023, the estimated oxygen concentrator market size was $3.5 billion. The company also projects that that rate will rise by 5.3 % in six years—2024 to 2030.
A rising market means one thing—a saturation of oxygen concentrators available. Hence, choosing the right portable oxygen concentrator (POC) is vital.
The right choice helps you maintain an active lifestyle while managing respiratory conditions. To help you make an informed decision, we’ve conducted thorough research and real-world testing on today’s top models.
After evaluating POCs' performance, portability, battery life, and ease of use, we’ve compiled a list of the year’s 12 best portable oxygen concentrators. Our recommendations are based on rigorous assessments and reviews, ensuring each option provides reliable, high-quality oxygen delivery.
If you seek reliable portable oxygen concentrators, look no further; here is your guide.
At the top of our best portable oxygen concentrator list are Inogen Rove6 and ReadyO2 Pro. We pick the two based on performance and price.
Here’s why:
A high-performing oxygen concentrator can offer the longest service to a patient. High-performing oxygen concentrators have features like
The Inogen Rove6 offers unmatched efficiency, primarily thanks to the pulse delivery system. It only releases oxygen when you inhale. Studies support that a portable oxygen concentrator with this advanced technology supplied 96% oxygen, compared to 93% given by a continuous-flow stationary oxygen concentrator. This breathing pattern offers users optimal comfort.
Its lightweight, compact design allows for seamless mobility, enabling you to keep up an active lifestyle without the burden of heavy equipment. With an extendable battery life of between 6 to 13 hours and FAA acceptance for air travel, you can enjoy your daily activities and travel confidently.
It is also clinically approved—another plus.
You control the entire system on a simple, easy-to-read LCD. The unit supports power through an AC Power Supply of 100-240V, 50-60Hz, with an auto-sensing feature that offers uninterrupted worldwide usage.
On the flip side, its price point is on the higher end.
At a discounted price of around $1,900, ReadyO2 Pro offers affordable and advanced features.
First, it comes in a compact, lightweight oxygen concentrator unit with impressive airflow. Its CECA Oxygen Molecular Sieve technology keeps oxygen concentrations at 96%. The claims seem valid because a 2023 study proves this technology produces more than 90% pure oxygen. This ensures that your red blood cells are oxygenated with every inhale. The filter uses an automatic multi-filtering system.
If the POC does not detect any, it releases oxygen every 4 seconds until it senses inhalation again. This occurs on an average of 12 to 20 times per minute. Additionally, it offers a sixth setting that continuously delivers oxygen at 1700 ml/min. However, you’ll get an oxygen concentration of ≥60% in this setting.
Then, the powerful copper compressor offers high function and low energy consumption.
The LCD screen stands out, providing clear, real-time alarm updates on oxygen flow and battery life. This feature makes it easy to keep track and adjust as needed. With DC charging, we’ve found that recharging on the move is seamless, whether in the car or at a rest stop.
It’s also universal, and you can use it in different environments. The brand’s site claims it works at home, in the highlands, and in a car. This way, you get consistent performance wherever life takes you. However, the flow settings could use a tune-up.
Among the 12 we’ll discuss, the FreeStyle Comfort is the best long-battery-life oxygen concentrator at 16 hours on a 16-cell battery. The 8-cell battery is equally impressive, offering 8 hours of operation.
This sleek, compact unit is designed for comfort with its lightweight, body-hugging curve that minimizes movement.
It features intelligent technology like autoSAT® and autoDOSE. This technology automatically adjusts the system to your breathing rate and activity level, whether walking or working out. This way, you get the right amount of oxygen at all times.
The FreeStyle Comfort’s auto-titration system also ensures optimal oxygen saturation. UltraSense® breath detection technology guarantees precision with every breath.
The device also boasts a powerful yet energy-efficient copper compressor, which means high functionality with minimal energy consumption.
Its easy-to-read LCD screen with large fonts, a multi-color display, and a glow-in-the-dark keypad make tracking settings simple, even in low-light conditions.
The FreeStyle Comfort is designed for seamless use with FAA approvals, whether at home, traveling, or outdoors. The only catch is that you need a prescription to buy it.
The Oxlife LIBERTY®’s significant feature is its high oxygen flow, which reaches nine settings. It uses patented Energy Smart Technology® to release a maximum of 1500mL/min pure 87-95% oxygen therapy.
Another of its standout features is its Continuous Positive Airway Pressure (CPAP) compatibility. This means the entire system—the CPAP machine, mask, and tubing—works well together. It means that this concentrator effectively keeps the airway open and aids breathing.
It is easy to set up and monitor, with a color LCD screen and a user-friendly control panel. You can also charge the device with AC and DC power. You can still use it even when it's plugged in.
Additionally, performance monitoring is available through the proprietary Dynamic Network Analysis® (DNA) Technology. This tech streamlines monitoring, analyzing, and forecasting system statuses, such as oxygen usage and equipment reports. Its GPS facet also offers peace of mind and reliability.
Plus, it meets FAA requirements for air travel. Its downside is probably its weight, at 6.35 lbs, a bit heavier than the other home oxygen POCs.
The Belluscura X-PLOR stands out as a top choice for portability among the best portable oxygen concentrators. It weighs only 3.75 pounds (1.70 kg) with its battery, and it’s lightweight and compact. Because it’s small and discreet, you can use it daily, even on errands.
This device delivers 82-92% pure oxygen using patented enrichment technology. Belluscura claims this technology turns ordinary air into medical-grade oxygen.
It offers four pulse flow oxygen settings, delivering 215 to 750 ml/min. Then, its No Breath Detected (NBD) mode is a battery-saving Auto Pulse feature (15 BPM) that claims to enhance efficiency for extended use. When it senses you aren’t using it after some time, it automatically reduces or stops.
Maintenance is straightforward with user-replaceable cartridges and direct-charge batteries. Bluetooth achieves connectivity, and the Nomad Biometrics app allows real-time monitoring and control. FAA compliance makes it travel-ready.
To buy this device, Belluscura has to approve your prescription.
Yet another Inogen product is the G5, which offers unmatched versatility for those with higher and lower oxygen needs.
It has six flow settings and offers a significant upgrade from its predecessors, the Inogen One G3 and G4. It delivers up to 1260 ml of medical-grade oxygen per minute.
Its compact design—weighing just 4.7 lbs with a single battery—also offers whisper-quiet operation at only 38 dBA. You can comfortably use it daytime and nighttime, at home or on the go. The dual power source—battery or wall power—adds to its versatile practicality. However, you must bring extra batteries if you are out beyond 7 hours.
Inogen’s dedication to innovation and improvement is evident in its advanced technology and commitment to user needs. With distribution across 59 countries and a focus on groundbreaking products, the G5 stands out as a leader in portable oxygen solutions.
The G4 came before the G5 but offered better compactness than the rest on this list. At just 2.7 lbs., it is one of the lightest and most compact POCs available. You can carry it anywhere for on-the-go oxygen therapy.
Despite its small size, the G4 delivers reliable oxygen therapy day or night. A battery or a wall connection powers it. The single battery lasts up to 2.7 hours, while the double battery extends usage up to 5 hours. Notably, this is a lower timeframe than its competitors.
Still, its simple controls and an easy-to-read LCD make operation straightforward, even for new users.
With its DC power cable for mobile use and auto-sensing AC power supply compatible worldwide, the G4 provides seamless oxygen therapy.
Pulse flow (9 settings)
-Setting 1-6 delivers 16 to 96 ml/breath
-Setting 6-9 delivers 128 to 192 ml/breath
The CAIRE SeQual Eclipse 5 stands out for its adjustable oxygen delivery. With CAIRE’s autoSAT® Technology, users can customize the pulse dose to match their needs.
It delivers oxygen with both continuous flow and pulse dose systems. In continuous flow, it operates with six settings, 0.5 to 3.0 LPM, adjustable in 0.5-liter additions. When you switch it to pulse dose, you get 9 settings.
From setting 1 to 6, you get 16 to 96 ml/breath by adjusting in 8 ml increments. From settings 7 to 9, the oxygen delivery is between 128 to 192 ml/breath with increments of 32 ml.
Features like alterable bolus rise time and trigger sensitivity let you fine-tune the device to match your breathing pattern. A bolus rise refers to the increase in the concentration of a substance in the bloodstream, in this case, pure oxygen.
This adjustability makes the Eclipse 5 a versatile option for users who need tailored oxygen therapy. It also works on both AC and DC power supplies.
Just like most other POCs, you also require a prescription to buy one.
The GCE Healthcare Zen-O Lite is a portable oxygen concentrator that can be brought to the library. At 37 dBA, it is as quiet as a whisper.
It weighs 5.5 lbs, and it’s designed for active lifestyles and long-term oxygen therapy needs.
Its pulse mode delivers up to 1050 ml of oxygen per breath, ensuring patients’ red blood cells stay saturated during daily activities. This is all thanks to its Rate Responsive Therapy™ (RRT) technology, which adjusts oxygen delivery based on the user’s breath rate. Breath sensitivity and a detection indicator further enhance its responsiveness.
Zen-O Lite is durable, lightweight, and suitable for air travel, having been cleared by the FAA. Additionally, features like replaceable sieve modules and simple controls make it easy to maintain. Accessories like a carry bag, power cables, and a battery make it a one-off buy.
We only wish it had more battery life in between charges.
Durability means a portable oxygen concentrator can withstand the demands of daily life. The OxyGo NEXT stands out for its exceptional durability, thanks to its built-to-last structure, user-replaceable batteries, and sieve beds.
Its durability also shines through its long-term performance, 6.5 and 13 hours on single and double battery capacities. Weighing just 4.7 lbs., this device is tough enough for 24/7 use but is a bit heavier than its competitors.
Whether at home, in the car, or on the go, you can easily fill up the battery using AC or DC power within 3-6 hours. The device features a clear LCD with simple controls.
The included carry bag and accessories make it even more convenient for daily mobility. The OxyGo NEXT sets the bar for portable oxygen concentrators, combining durability with unmatched battery life.
The Philips SimplyGo POC is invented with simplicity in mind. The designers made it incredibly easy to use, operate, and maintain.
First, it combines continuous flow and pulse dose delivery in one device. This is flexibility at its best, accommodating a wide range of oxygen needs. Second, even though it’s the heaviest on our list, at 10 pounds, you can still carry it wherever you go. But if you want one that’s half that weight, you can go for the SimplyGo Mini, which weighs 5 pounds.
The controls are intuitive, with clear settings for continuous flow (0.5 to 2 LPM). The pulse dose bolus sizes (12 mL to 72 mL) permit users to find the right fit for their oxygen therapy.
We also found SimplyGo's impressive feature to be its sleep mode. This mode automatically switches to a 2LPM continuous flow if no breath is detected. The device operates quietly at 43 dBA or less, an unobtrusive option.
With up to 3 hours of battery life on the pulse dose setting 2 and a clear, easy-to-read display, the SimplyGo offers convenience and reliability for daily use.
The final pick is the ReadyO₂ Lite portable oxygen concentrator, a budget-friendly option. But that isn’t all—it also shines as the lightest, at 1.32 lbs, and the highest altitude mark.
The one-button operation simplifies usage, and with a single battery charge, it provides up to 4 hours of oxygen, perfect for short trips or daily use. However, it wouldn’t fit a longer trip.
What makes the ReadyO₂ Lite a budget-friendly option without compromising performance is its continuous flow of 2500 ml/min. It delivers a steady and uninterrupted stream of oxygen. It also features a DC power option, meaning you can use a car charger. The device operates quietly at 48 dBA, similar to the sound of rain.
The extended battery life and rapid recharge time of just 1.5 hours add to its practicality, making it ideal for those who need a POC without breaking the bank. Plus, with a 2-year warranty, you can rely on the grade and durability of this device.
Here is a side-by-side comparison of the best portable concentrators for 2025
People who have issues with breathing, like COPD or emphysema, use oxygen concentrators as a breathing aid. The versions available are stationary and portable units.
A portable oxygen concentrator (POC) is a movable version. It is a small, compact device you carry wherever you go. Unlike traditional tanks, POCs filter oxygen from the air, so you don’t need tank refills.
POCs mainly use a pulse dose delivery, while others operate on a continuous flow. Some have both oxygen delivery systems. Pulse flow dose is delivered in milliliters per breath (ml/breath) while continuous by LPM, liters per minute.
These POC versions are also quieter because most operate under 55 dBA.
A POC works by extracting oxygen from the surrounding air. Then, it delivers purified medical-grade oxygen in concentrated form to the user.
First, it draws in ambient air through a filter. The air then passes through a series of components, including a sieve bed separating nitrogen from oxygen. This is possible because of the Pressure Swing Adsorption (PSA) phenomenon, where the sieve bed traps nitrogen and allows oxygen to pass through.
Concentrated oxygen is then compressed and stored in a reservoir. When the user inhales through the nasal cannula, the POC releases the amount of oxygen needed. The device settings allow the user to vary the amount of oxygen to inhale.
Pulse dose and continuous flow differ based on how each releases oxygen.
Pulse dose oxygen delivery only provides a burst when the user inhales. This mode analyzes a user’s breathing pattern and delivers oxygen in sync with it. It’s a more efficient delivery because it saves battery use. It’s like taking a sip of water—only when you’re ready to drink.
In contrast, continuous flow always delivers a steady stream of oxygen. It keeps running regardless of the user’s breathing pattern. Think of it like drinking water from a tap that’s always running—oxygen is continuously available, whether you’re inhaling or not.
Pulse dose offers better mobility, longer battery life, and adaptivity during activities. Continuous flow presents perks like consistent oxygen supply, higher CPAP compatibility, and better overnight utilizations.
So, selecting what suits you depends on your respiratory requirements, illness severity, and activity level. Getting a doctor’s input should also be part of the decision-making process.
Portable oxygen concentrator costs vary depending on several factors. These are brand, model, features, and oxygen delivery modes. Additional price factors may include accessories such as bags, chargers, and batteries.
Nonetheless, on average, prices for these devices can range from $1,000 to $6,000 or more.
Below is a brief overview of typical price ranges for different POC models:
These prices reflect each model class’s features, portability, and performance. High-end models typically offer more versatility and longer battery life.
Rental options are also available for those who may not need a long-term POC.
If you have an insurance policy that covers medical devices, it could significantly offset your expenses. Another trick is to buy POCs at discounted prices.
Everyone searching for the best portable oxygen concentrator has specific needs. Others seek a quiet, portable oxygen machine, while others seek long battery-life oxygen concentrators. That said, here are some of the factors you need to consider before ordering one:
Use the above checklist to decide on the best portable oxygen concentrator.
We evaluate choosing the best POCs based on key performance metrics. We dug into portable oxygen concentrator reviews from actual POC oxygen users to gauge whether the device meets your needs. If the remarks match what the brand advertises on their website, they make it to the list. Here’s a key metric guide we used that help you make an informed decision:
Our list comprises portable oxygen concentrators with two modes to deliver supplemental oxygen. Others are exclusively pulse dose, others are continuous flow, and others are both. The pulse delivery systems are more efficient and ideal for people with less severe oxygen needs. Continuous flow is better for those requiring a consistent oxygen supply.
But remember, the selection depends on the patient’s respiratory demands, disease severity, and degree of activity.
The flow rate is how much volume passes in a minute. Here we have milliliter per minute. You’ll also find that rating written as LPM, meaning liters per minute. Our portable oxygen concentrator comparison chart above helps you see how the 12 brands compare. Generally, on our list, the minimum pulse delivery is 750 ml/breath, and the maximum is 3000 ml/breath. The max continuous flow here is 9.0 LPM, the least 0.5 LPM.
The rate of flow you select also depends on how much oxygen you require.
Our list of POCs contains a varied range of battery life. The shortest is 4 hours, and the longest is 8 hours on a single 8-cell battery. When you use a double 16-cell one, some brands could go up to 16 hours.
A longer battery life suits every user, but mostly someone who is always on the go.
Every POC on our list is ideally portable, but we chose compact and light ones. The lightest one here, the ReadyO₂ Lite, is 1.32 pounds, while the heaviest is the Philips SimplyGo POC, at 10 lbs.
This range comfortably caters to all users.
The concentrator’s noise can affect comfort, particularly during sleep or in public places. For a more discreet and peaceful experience, a quieter device (around 40 dBA or less) is preferable.
Thankfully, our list has a range between 37 dBA and 53 dBA. The loudest, the GCE Healthcare Zen-O Lite, operates at 52.3 dBA, the equivalent of background noise in a quiet office.
Ease of use was also a major factor in creating this list. So much so that a user-friendly interface with a clear LCD screen and simple controls is a constant in all the POCs. These offer unmatched convenience.
Some POCs also offer smart features like app connectivity for real-time monitoring. Examples are CAIREview™ for all CAIRE products and the Nomad Health™ App for Belluscura X-PLOR.
A warranty cover helps ease maintenance costs in case of damage or replacements. A longer warranty period offers peace of mind and protects your investment.
A brand’s support helps users with day-to-day troubleshooting. Support is crucial because a significant crowd using POCs are seniors who aren’t versed in technology. Thankfully, all the brands above offer resources to help on their websites through forums, calls, emails, and published manuals and guides.
Narrowing down to the best portable oxygen concentrator is essential for comfortable breathing. But it can be a hassle in a market flooded with tens of labels. Now, you have a comprehensive list of 12 that you can select to fit various lifestyles and needs. These can improve convenience, autonomy, and peace of mind.
Remember, even with the best POC, you must consult your healthcare provider for guidance. These professionals have the experience to advise you on the best choice for your requirements.
The right concentrator isn’t just a device—it’s a gateway to a more active and fulfilling life. Take charge of your respiratory health and embrace the opportunities to breathe easier and live better.