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Liberty 2 Portable Oxygen Concentrator
2 LPM Continuous Flow in a Portable Carry System
If your prescription requires 2 liters per minute (2 LPM) continuous flow, most lightweight portable oxygen concentrators will not meet that requirement. The Liberty 2 is designed for individuals who need steady oxygen delivery — not pulse-only oxygen.
Liberty 2 delivers up to 2 LPM continuous flow in a carry-style system, giving patients mobility without relying solely on heavy stationary equipment.
What Does 2 LPM Continuous Flow Mean?
Continuous flow provides oxygen at a steady rate whether you inhale or not. This is often required for:
- Patients prescribed continuous oxygen therapy
- Nighttime oxygen use
- Users who do not consistently trigger pulse-dose sensors
- Stable, steady oxygen delivery needs
Pulse dose settings are not equivalent to 2 LPM continuous. If your prescription says “continuous,” you need a device designed for continuous flow.
Pulse Dose vs Continuous Flow
| Feature | Pulse Dose | Continuous Flow |
|---|---|---|
| Oxygen Delivery | Delivers oxygen when you inhale | Constant oxygen stream |
| Best For | Many active daytime users | Sleep & steady delivery needs |
| Battery Life | Longer | Shorter due to constant flow |
The Liberty 2 exists for a specific need: portable 2 LPM continuous flow oxygen.
Battery Runtime at 2 LPM Continuous
- Single battery: typically around 2–3 hours at 2 LPM
- Extended batteries increase runtime
- Additional batteries recommended for longer travel days
Runtime varies depending on altitude, breathing demand, and battery condition.
Who Is the Liberty 2 Best For?
- Prescriptions of up to 2 LPM continuous flow
- Patients who cannot rely on pulse dose
- Individuals needing mobility without tanks
- Users wanting a prescription medical-grade oxygen concentrator
If your prescription exceeds 2 LPM continuous, a stationary system may still be required.
Learn More About the Liberty 2
For full specifications, dimensions, weight, and manufacturer details, visit the official Liberty 2 product page below.
👉 View Full Liberty 2 Product Details
Call for Pricing & Options
Pricing varies depending on battery configuration and current availability. The best way to receive accurate pricing and payment options is by speaking directly with a specialist.
📞 Call 1-800-608-8651
We will confirm your oxygen setting and help determine if the Liberty 2 is the correct match for your prescription.