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Real customers who reclaimed their mobility with our mini oxygen concentrators. You can, too.
The Oxlife Liberty 2 is a compact portable oxygen concentrator that combines continuous-flow oxygen up to 2.0 LPM with pulse-dose settings 1–10. It is designed for people who need more delivery flexibility than a pulse-only portable system can provide.
Switch between continuous flow and pulse dose according to the prescription and instructions provided by your clinician.
Continuous flow reaches 2.0 LPM, while pulse mode provides settings 1 through 10.
The battery can be changed by the user, making it practical to carry additional power for longer outings.
The Liberty 2 meets FAA requirements for accepted portable oxygen concentrators. Airline policies still apply.
It can operate from battery, approved household power, or compatible vehicle power for home and mobile use.
O2 Concepts’ DNA platform can support device monitoring and service visibility when enabled.
The Liberty 2 gives buyers a way to compare continuous-flow capability without automatically moving to a larger wheeled concentrator. Its compact body and multifunction carry bag are designed for daily mobility.
Because continuous flow uses more power than pulse dose, battery planning matters. Many users compare packages with an extra battery or charging option for longer days.
The Liberty 2 is often compared by people whose prescription requires continuous flow, people who need a broader pulse range, or buyers who want one machine that can support both delivery modes. Your physician must determine whether it is appropriate and which setting to use.
The Liberty 2 provides two different oxygen-delivery modes. They are not interchangeable, and settings should only be used as prescribed.
0.5 to 2.0 LPM
Delivers oxygen continuously, whether or not the machine detects a breath.
Often compared by users whose prescription specifically calls for continuous-flow oxygen.
Settings 1 through 10
Delivers a measured bolus when the device detects inhalation.
Pulse settings are machine settings and are not equal to continuous-flow liters per minute.
The Liberty 2 can operate and charge from approved AC or compatible DC power across its settings. The removable battery provides cordless operation when you are away from an outlet.
Yes. The Liberty 2 meets FAA requirements for accepted portable oxygen concentrators. Travelers must still follow the airline’s notice, documentation, and battery rules.
The color LCD shows the selected mode, flow setting, battery status, and system alerts. Controls are designed for straightforward daily operation.
Package contents can vary. Review your written order to confirm included batteries, accessories, and warranty coverage.
Adds cordless operating time for longer days away from power.
Useful when managing more than one battery.
Supports shoulder carrying and daily transport.
Convenient for keeping an approved power supply in a second location.
Useful for compatible vehicle operation and travel.
Use tubing and cannulas within the manufacturer’s specifications.
| Model | Delivery Type | Approximate Weight | Best Known For |
|---|---|---|---|
| Oxlife Liberty 2 | Continuous up to 2.0 LPM; pulse 1–10 | About 6.35 lb without battery | Continuous flow in a compact, carryable design. |
| OxyGo FIT Plus | Pulse 1–4 | About 2.8 lb | Minimum carrying weight and small dimensions. |
| OxyGo NEXT NG | Pulse 1–6 | 4.8 lb with standard battery | Longer battery options in a pulse-only system. |
| Oxlife Independence | Continuous up to 3.0 LPM; pulse mode | Larger wheeled system | Higher continuous-flow capability and cart mobility. |
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Weight: approximately 6.35 pounds without the battery. Total carrying weight is higher with the battery and bag.
Dimensions: approximately 9.9 × 9.9 × 3.8 inches.
Continuous-flow settings from 0.5 to 2.0 LPM in 0.25 LPM increments.
Pulse settings 1 through 10. Pulse settings are not equivalent to continuous-flow liters per minute.
Up to approximately 4.5 hours in lower pulse settings. Continuous-flow operation uses more power and provides shorter battery time. Actual results vary.
Operates and charges from approved AC and compatible DC power on all settings, or from a charged removable battery.
Manufacturer-stated oxygen concentration is approximately 87% to 95% across settings.
A prescription is required. Your physician must determine the appropriate delivery mode and setting.
The Oxlife Liberty 2 stands out because it combines 2.0 LPM continuous flow with a broad pulse range in a machine that remains compact enough to carry. It is particularly useful to compare when pulse-only systems do not match the prescription.
The tradeoff is battery consumption: continuous flow generally provides less cordless operating time than pulse dose. Package planning should account for the user’s prescribed mode, travel schedule, and access to power.
Yes. It provides continuous flow from 0.5 to 2.0 liters per minute.
Yes. It offers pulse settings 1 through 10.
The concentrator weighs approximately 6.35 pounds without the battery. Carrying weight increases with the battery and bag.
Battery time can reach approximately 4.5 hours in lower pulse settings. Continuous-flow run time is shorter. Actual time varies by mode, setting, battery condition, and environment.
Yes. It can operate from compatible DC vehicle power on all settings.
Yes. It is designed to operate and charge from approved AC or compatible DC power across its settings.
It meets FAA requirements for accepted portable oxygen concentrators. Confirm procedures and battery requirements with your airline.
Your physician must determine whether the prescribed delivery mode and setting are appropriate during sleep.
No. Pulse settings and continuous-flow liters per minute are different measurements.
Yes. The Liberty 2 is a prescription medical device.
No. It concentrates oxygen from surrounding air while it has power.
Yes. The rechargeable battery is removable and user replaceable.
DNA is O2 Concepts’ connectivity platform for device monitoring and service-related information when enabled.
Follow the user manual and contact your equipment provider if the condition continues. Use your prescribed backup oxygen if the concentrator is not operating correctly.
We focus on trusted portable oxygen concentrators manufactured in the United States.
We explain the meaningful differences without selecting a medical setting or replacing your clinician’s guidance.
Our founder has helped oxygen users and families compare portable systems for more than 15 years.
Call Inspired Portable Oxygen to compare batteries, accessories, warranty choices, financing options, and current package pricing.
A practical guide to delivery type, weight, batteries, travel, and warranties.
Learn why mode, flow setting, battery age, and temperature affect operating time.
Understand the difference between the two oxygen-delivery methods.
Important medical and safety notice: This page provides general product information only. It does not diagnose a condition, prescribe oxygen, select a setting, or determine whether a machine is appropriate for you. Portable oxygen concentrators are prescription medical devices. Follow your prescription, the manufacturer instructions, and advice from your physician or qualified healthcare professional. Keep your prescribed backup oxygen available for power loss, equipment failure, or service.
The Oxlife Liberty 2 portable oxygen concentrator is built for people who need a true “all-day, all-settings” solution.
It’s one of the few portable systems that combines continuous flow and high-capacity pulse dose in a wearable design —
so you can stay mobile without giving up the oxygen delivery you rely on.
With continuous flow up to 2.0 LPM and pulse flow settings 1–10, the Liberty 2 is a strong choice for users who want a
single device that can support home use, travel, and everyday life with fewer compromises. :contentReference[oaicite:1]{index=1}
The Liberty 2 is designed for flexibility. Many portable oxygen concentrators are pulse-only.
The Liberty 2 gives you the freedom of portability while also offering continuous flow options when needed.
Key advantages:
The Liberty 2 is best known for delivering continuous flow oxygen up to 2.0 LPM while still being a portable, wearable system —
a major benefit for users who prefer or require continuous flow for certain situations. :contentReference[oaicite:2]{index=2}
Note: exact settings and usage should always match your prescription and clinician guidance.
In addition to continuous flow, the Liberty 2 offers pulse settings 1 through 10, giving you flexibility across a wider range of needs
— all in one device. :contentReference[oaicite:3]{index=3}
Battery runtime varies by mode and setting. Many users like the Liberty 2 because it supports both continuous and pulse delivery in one platform,
reducing the need to switch devices for different situations.
Typical continuous-flow runtimes (varies by setting):
These are commonly published estimates; real-world results vary by battery health, altitude, temperature, and usage. :contentReference[oaicite:4]{index=4}
This system is a great fit if you:
The Liberty 2 is commonly sold with a 3-year manufacturer warranty (confirm current coverage at time of purchase).
We carry new units only — no refurbished or used equipment. :contentReference[oaicite:5]{index=5}
Because battery and accessory configurations can vary, pricing depends on how you’ll use the system day to day.
Rather than pushing a generic package, we help you:
With over 25 years of experience in the Oxygen industry, Inspired Portable Oxygen is a USA-owned and operated company dedicated to providing your prescribed oxygen therapy in a way that improves your quality of life, encouraging you to travel and live your life on the go.
