O2 Concepts Liberty 2 Portable Oxygen Concentrator - Demo Unit
O2 Concepts Liberty 2 Portable Oxygen Concentrator - Demo Unit
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Description
Description
Meet the latest innovation in oxygen therapy: the Oxlife LIBERTY 2®. With 24/7 continuous flow performance up to 2.0 LPM, the Oxlife LIBERTY 2® builds on its revolutionary continuous flow capability and industry-leading pulse dose capacity in a lightweight, compact wearable design. The Oxlife LIBERTY 2® provides a reliable and durable, single-source solution for a broad range of therapeutic needs.
● Continuous flow settings up to 2.0 LPM
● Pulse flow settings 1-10
● Suitable for use at home, at work or on the go
● Energy Smart Technology®
● Equipped with DNA Technology® Device Connectivity Platform
Features:
- Includes multifunction carry bag for ease of mobility
- Vehicle performance with DC power on all settings
- Meets FAA requirements for air travel
- Color LCD screen with easy-to-use control panel for quick set-up in hospital, clinic or home
- Compact, innovative and easily accessible battery design that is chargeable on all settings while in use
- Performance monitoring and proactive support available through proprietary Dynamic Network Analysis® (DNA) Technology
- 1 Year Warranty
Shipping & Rerturns
Shipping & Rerturns
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Frequently asked questions
Shoot our team an email & we’ll get back to you ASAP
How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
How do I know if this machine or mask will work for me?
How do I know if this machine or mask will work for me?
Every person’s needs are different. If you’re unsure, reach out to our team — we’ve helped thousands of customers find the right setup for their prescription, comfort, and breathing style. We can match your device, mask type, and pressure settings so you get the best results.
Do I need a prescription to buy a CPAP or BiPAP machine?
Do I need a prescription to buy a CPAP or BiPAP machine?
Yes. In the U.S., the FDA requires a prescription for CPAP and BiPAP machines. Masks, tubing, and most accessories can be purchased without one. If you’re unsure what you need, we can help guide you through it.
How often should I replace my mask, tubing, and filters?
How often should I replace my mask, tubing, and filters?
For best performance, replace your mask every 3 months, tubing every 6 months, and filters every 2–4 weeks (or as recommended). This keeps your therapy clean, safe, and effective.
Are your machines new or refurbished?
Are your machines new or refurbished?
We offer both brand new and certified pre-owned units. All refurbished machines are carefully inspected, sanitized, and tested to ensure they perform like new — often at a fraction of the price.
Do these machines come with a warranty?
Do these machines come with a warranty?
Yes! All new machines come with a manufacturer’s warranty, and our refurbished units include a MajorCPAP limited warranty for peace of mind. You’ll see the warranty details on each product page.
How loud are CPAP and oxygen concentrator machines?
How loud are CPAP and oxygen concentrator machines?
Most modern CPAPs run at around 25–30 decibels — about as quiet as a soft whisper. Oxygen concentrators are slightly louder, but still comfortable for home use, especially when placed a few feet away from the bed.
What’s the difference between portable and stationary?
What’s the difference between portable and stationary?
Portable concentrators are lightweight and battery-powered — great for travel or daily outings. Stationary concentrators plug in and deliver continuous oxygen, ideal for home use.
What kind of support do you offer after purchase?
What kind of support do you offer after purchase?
Our customer service doesn’t stop after checkout. We’re here to help with setup, troubleshooting, replacement parts, and warranty support — by phone, chat, or email. You’ll always talk to a real person who knows the products.

