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GCE Zen-O Concentrator 2 Battery Package (Certified Pre-Owned)

GCE Zen-O Concentrator 2 Battery Package (Certified Pre-Owned) - Image 2

GCE Zen-O Concentrator 2 Battery Package (Certified Pre-Owned) - Image 3

GCE Zen-O Concentrator 2 Battery Package (Certified Pre-Owned) - Image 4

GCE Zen-O Concentrator 2 Battery Package (Certified Pre-Owned) - Image 5

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GCE Zen-O Concentrator 2 Battery Package (Certified Pre-Owned)

Pulse + continuous flow · up to 2.0 LPM · 6 settings · 8.8 lb

Original price was: US$1,795.00.Current price is: US$1,400.00.

Condition

New Certified Pre-Owned Sold out

✓ Genuine, fully reconditioned unit backed by a 1-Year Warranty by American Oxygen.

Out of stock

Call (786) 755-8063

Certified Pre-Owned1-Yr Warranty by American OxygenFAA approvedFDA clearedAuthorized GCE dealer

6pulse settings (1–6)

2.0 LPMcontinuous flow

8.8 lbunit weight

up to 8hdual-battery pulse

6pulse settings (1–6)

2.0 LPMcontinuous flow

8.8 lbunit weight

up to 8hdual-battery pulse

Certified Pre-Owned — inspected, function-tested and reconditioned to factory standard.
Pulse + continuous flow 0.5–2.0 LPM, six settings, up to 8 h on two batteries, 8.8 lb.
FAA-approved for cabin use and FDA-cleared prescription device.
1-Year Warranty by American Oxygen · authorized GCE dealer · free U.S. shipping over $99.

Certified Pre-Owned1-Yr Warranty by American OxygenFAA approvedFDA clearedAuthorized GCE dealer

Secure checkout · financing available

VISAAMEXDISC●VERaffirm

Brand: GCE
SKU: RS-00502-X-D-REFURB
Category: Portable Oxygen Concentrator

CERTIFIED PRE-OWNED · INSPECTED & WARRANTIED

Continuous flow you can carry — Certified Pre-Owned

This GCE Zen-O is Certified Pre-Owned: a genuine used unit that American Oxygen fully inspects, function-tests and reconditions to factory standard, replacing critical parts where needed. You get real pulse + continuous flow (0.5–2.0 LPM), six settings and dual-battery runtime — backed by a 1-year American Oxygen warranty, for far less than new.

Genuine reconditioned unit · 1-Year Warranty by American Oxygen · prescription device · free U.S. shipping $99+ · call (786) 755-8063 to confirm availability.

Why this concentrator

Six pulse settings, adaptive dosing

Beyond continuous flow, the Zen-O adds six pulse settings with Rate Responsive Therapy — the bolus adapts to your breathing, so one unit covers both delivery types as your day changes.

FAA-approved & FDA-cleared

The Zen-O is FAA-approved for commercial flights, so it flies in the cabin with you. It's a genuine, FDA-cleared prescription medical device — not a grey-market import.

Battery runtime by setting

Pulse setting	1 battery	2 batteries
Setting 1	4h 00m	8h 00m
Setting 2	4h 00m	8h 00m
Setting 3	3h 00m	6h 00m
Setting 4	2h 15m	4h 30m
Setting 5	2h 00m	4h 00m
Setting 6	1h 45m	3h 30m

Continuous flow	1 battery	2 batteries
0.5 LPM	3h 00m	6h 00m
1.0 LPM	1h 45m	3h 30m
1.5 LPM	1h 15m	2h 30m
2.0 LPM	45m	1h 30m

Recharge — full charge (AC)	about 6 hours
Battery	about 1.45 lb each, user-replaceable (up to two)

Per-setting runtimes are American Oxygen estimates; actual battery life varies with breath rate, altitude and battery age.

Details

Technical specifications

Oxygen delivery	Continuous flow + pulse dose
Continuous flow	0.5 – 2.0 LPM (0.5 LPM steps)
Pulse settings	1–6 (0.5 steps, up to 22 mL bolus)
Oxygen concentration	87% – 96%
Weight	8.8 lb unit · ~10.25 lb with one battery · ~11.7 lb with two
Dimensions	8.3" × 6.6" × 12.3"
Battery	12-cell Li-ion, about 1.45 lb each · user-replaceable (up to two)
Battery runtime	up to 8 hours (two batteries, setting 1 pulse)
Recharge time	about 6 hours (AC, full charge)
Noise level	42 dB(A) at setting 2
Therapy	Rate Responsive Therapy (adaptive pulse dose)
Display	Color LCD
Altitude	up to 13,000 ft
Power	AC 100–240V (worldwide) + DC car charger
Delivery type	Continuous flow + pulse dose
Certifications	FAA-approved for flights · FDA-cleared (prescription required)

Warranty & condition

Genuine, fully reconditioned unit backed by a 1-Year Warranty by American Oxygen.

In short

The Certified Pre-Owned GCE Zen-O is a genuine, previously-owned Zen-O that American Oxygen has inspected, reconditioned and function-tested to factory standard, then backed with a 1-Year Warranty by American Oxygen. It's an FDA-cleared, FAA-approved portable that delivers both continuous flow (0.5–2.0 LPM) and six pulse settings — at a meaningful discount to a new unit.

Frequently asked questions

What does “Certified Pre-Owned” mean for the Zen-O?

A Certified Pre-Owned Zen-O is a genuine used unit that American Oxygen has fully inspected, function-tested and reconditioned to factory standard — replacing critical parts where needed — then backed with a 1-year American Oxygen warranty. You get real GCE continuous-flow performance for far less than a new unit.

How long does the Zen-O battery last?

In pulse mode, up to about 4 hours on one battery at setting 1 and up to 8 hours with two. In continuous mode, about 3 hours at 0.5 LPM on one battery, coming down as the liter setting rises. Runtime varies with conditions — carry a charged spare for long days.

Is the Zen-O approved for airline travel?

Yes. The Zen-O is FAA-approved for use on commercial flights and travels in the cabin with you. Airlines typically ask for advance notice and enough charged batteries for about 150% of your flight time.

Do I need a prescription to buy it?

Yes. The Zen-O is an FDA-cleared prescription medical device. American Oxygen can help you understand what's needed — just ask when you call.

Does the Zen-O really do continuous flow?

Yes. The Zen-O delivers true continuous flow from 0.5 to 2.0 LPM in 0.5 steps, plus six pulse settings — it's the versatile GCE portable that covers both delivery types. That makes it suitable for many sleep and steady-flow prescriptions a pulse-only unit can't serve.

What warranty comes with it?

A 1-Year Warranty by American Oxygen on this Certified Pre-Owned unit. American Oxygen is an authorized GCE dealer, so it's a genuine Zen-O, reconditioned and function-tested — and if anything isn't right, you call us and we take care of you.

Need continuous flow without the new-unit price? Let's talk.

A Certified Pre-Owned Zen-O gives you genuine continuous flow, inspected and warrantied, for far less than new. Call American Oxygen at (786) 755-8063 or message us to confirm current availability and match the flow settings to your prescription.

Call (786) 755-8063