Head-to-head
Oxlife Liberty2 vs. GCE Zen-O
These are two of the lighter portables that also offer continuous flow up to 2 LPM — handy for sleep or for prescriptions that call for continuous oxygen.
Quick verdict
Choose the Oxlife Liberty2 if…- Weight matters most — about 8 lb with battery vs. 10.25 lb
- You like finer pulse adjustment (settings 1–10)
- Continuous flow at 2 LPM runs a little longer per battery (about 1 hr vs. 45 min)
Choose the GCE Zen-O if…- You want the option of two batteries for longer runtime
- Pulse runtime matters — 4 hr per battery, or 8 hr with two
- You want a cart for rolling it around
Specs side by side
| Oxlife Liberty2 | GCE Zen-O | |
|---|---|---|
| Delivery | Pulse + continuous | Pulse + continuous |
| Settings | Pulse 1–10 · Continuous 0.5–2 LPM | Pulse 1–6 · Continuous 0.5–2 LPM |
| Weight | 8 lb with battery | 10.25 lb |
| Battery at setting 2 | Pulse 2: 4 hr · Continuous 2 LPM: 1 hr | Pulse 2: 4 hr (8 hr with 2 batteries) · Continuous 2 LPM: 45 min (1 hr 30 min with 2) |
| Noise | — | 38 dB (pulse 2) |
| FAA approved | Yes | Yes |
Manufacturer figures. Battery times are averages and vary with breathing rate, altitude and battery age.
What they have in common
✓ Pulse and continuous flow✓ Continuous flow from 0.5 to 2 LPM✓ FAA approved for flights
Still deciding? Your prescription — especially whether you need continuous flow and your highest setting — usually settles it. Our specialists can help at 1-800-941-1402.
See them up close
Oxlife Liberty2Learn moreGCE Zen-OLearn moreWant a second opinion?
Tell us your prescription and how you spend your day — we’ll tell you which one fits.