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Inogen One G5 (Certified Pre-Owned)
The Inogen One G5 — six pulse settings up to 1,260 mL/min, just 4.7 lb, up to 13 hours of battery, and Inogen Connect Bluetooth. A genuine Inogen unit, Certified Pre-Owned, FAA-compliant & FDA-cleared.
From US$1,295 – US$1,545
Included in the price. No surprises at checkout.
✓ 1-Year Warranty by American Oxygen · genuine Inogen unit, inspected, reconditioned & tested to like-new performance.
Call (786) 755-8063- 6 pulse settings (1–6) · up to 1,260 mL/min · 4.7 lb
- Up to 13h of battery (16-cell, setting 1) · Bluetooth (Inogen Connect)
- FAA-compliant for air travel · FDA-cleared (prescription required)
- Genuine Inogen unit · Certified Pre-Owned · 1-Year Warranty by American Oxygen
The full-size freedom of the G5 — for far less
The Inogen One G5 is one of the most capable pulse-dose portable concentrators ever made: six settings, up to 1,260 mL/min, and enough battery to leave the charger behind for the day. Buying it Certified Pre-Owned gets you that same genuine device — inspected, reconditioned and tested by our technicians — without paying full retail.
Genuine Inogen device. FAA-compliant for air travel and FDA-cleared. Prescription required. 1-Year Warranty by American Oxygen.Why the Inogen One G5
Pulse-dose delivery across settings 1–6 gives you room to match higher oxygen needs than most compact concentrators — all in a 4.7 lb device.
Run all day on a 16-cell battery at setting 1, or travel light with the single battery. Two batteries let you plan longer outings and flights with confidence.
Built-in Bluetooth pairs with the Inogen Connect app, so you can check battery, settings and device status right from your phone.
A genuine Inogen unit our technicians inspected, cleaned, reconditioned and tested — backed by a 1-Year Warranty by American Oxygen, not a risky as-is sale.
Battery runtime by setting
| Battery | Setting | Runtime |
|---|---|---|
| Single (8-cell) | 1 | ~6.5 h |
| Single (8-cell) | 2 | ~5.0 h |
| Single (8-cell) | 3 | ~3.5 h |
| Single (8-cell) | 4 | ~2.5 h |
| Single (8-cell) | 5 | ~1.8 h |
| Single (8-cell) | 6 | ~1.5 h |
| Double (16-cell) | 1 | up to ~13 h |
| Double (16-cell) | 2 | ~10 h |
| Double (16-cell) | 3 | ~7 h |
| Double (16-cell) | 4 | ~5 h |
| Double (16-cell) | 5 | ~3.5 h |
| Double (16-cell) | 6 | ~3 h |
Per-setting runtimes are American Oxygen estimates; Inogen publishes only the setting-1 maximum. Actual battery life varies with breath rate, altitude and battery age.
Details
Technical specifications
| Flow type | Pulse dose only (no continuous flow) |
| Flow settings | 6 (settings 1–6) |
| Max oxygen output | 1,260 mL/min |
| Weight | 4.7 lb with single (8-cell) battery (16-cell/double-battery weight not published by Inogen) |
| Dimensions | 8.15 × 3.26 × 7.19 in with single battery (9.03 in tall with 16-cell battery) |
| Battery options | 8-cell (single, BA-500) or 16-cell (double, BA-516) |
| Battery life | Up to 6.5 h single / up to 13 h double (setting 1) |
| Sound level | 38 dBA (setting 2) |
| Connectivity | Inogen Connect Bluetooth app |
| Power | AC 100–240V · DC car/airplane adapter |
| Air travel | FAA-compliant · FDA-cleared |
| Warranty | 1-Year Warranty by American Oxygen |
| Condition | Certified Pre-Owned — inspected, reconditioned & tested |
Warranty & condition
The Inogen One G5 Certified Pre-Owned is a genuine, pulse-dose portable oxygen concentrator with six flow settings (1–6) and up to 1,260 mL/min of oxygen. At 4.7 lb with a single battery and up to 13 hours on a 16-cell battery, it's built for full-day mobility and air travel (FAA-compliant). Certified Pre-Owned means a previously used unit that American Oxygen inspected, cleaned, reconditioned and tested to like-new performance, backed by a 1-Year Warranty by American Oxygen. Prescription required.
Frequently asked questions
What does “Certified Pre-Owned” mean for this G5?
How long does the battery last?
Can I fly with the Inogen One G5?
Is this the same device as a new G5?
Single battery or 16-cell — which should I choose?
Do I need a prescription?
Not sure this is your setting? We'll help you choose.
Talk to a specialist — we'll confirm the right concentrator and flow for your prescription.
Call (786) 755-806330 reviews for Inogen One G5 (Certified Pre-Owned)
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David Frotelli –
Excellent device. Best price in the market!
David Frotelli –
Excellent device. Best price in the market!
Fernando Lucero –
Recomendado! Compré para mi padre desde Argentina el Inogen G5 y me llegó a New York cuando llegue a mis vacasciones, en 5 días. sin problema alguno, 100% Recomendable!
Fernando Lucero –
Recomendado! Compré para mi padre desde Argentina el Inogen G5 y me llegó a New York cuando llegue a mis vacasciones, en 5 días. sin problema alguno, 100% Recomendable!
Gustavo –
Mejor precio de Inogen G5! Compré y tenía equipos ya disponibles para entregar de forma local. Muchas gracias
Gustavo –
Mejor precio de Inogen G5! Compré y tenía equipos ya disponibles para entregar de forma local. Muchas gracias
Henry –
This machine solved all my problems traveling on oxygen. Thank you American Oxygen for your support and service.
Recommended 100%.
Henry –
This machine solved all my problems traveling on oxygen. Thank you American Oxygen for your support and service.
Recommended 100%.
Patrick –
most reliable equipment on the market. Thank you for the good service
Amanda –
The Inogen One G5 is the best POC! I have had it for a little over a year now and it has made my life so much easier. I am very active, so having an oxygen concentrator that is so portable and easy to use has been amazing.
Eugenio –
Muchas gracias por la atención recibida. Recibí el equipo Inogen G5 velozmente y sin problemas. Saludos!
Eugenio –
Muchas gracias por la atención recibida. Recibí el equipo Inogen G5 velozmente y sin problemas. Saludos!
Peter –
I absolutely love my Inogen One G5! It’s so much lighter and more compact than my old oxygen concentrator, and it’s so easy to use. I can’t believe how much freedom it has given me. I highly recommend it to anyone who needs oxygen therapy.
Florencia –
Ya contaban con equipos para entrega inmediata. Gracias por la atención.
Florencia –
Ya contaban con equipos para entrega inmediata. Gracias por la atención.
Miriam L. –
El Inogen G5 usado recertificado se encontró en perfecatas condiciones. Muchas gracias por la atención.
Miriam L. –
El Inogen G5 usado recertificado se encontró en perfecatas condiciones. Muchas gracias por la atención.
Guillermo Rojas –
Gracias por la paciencia y consideración. El Inogen G5 funciona como lo esperaba
Ron –
Recently purchased this Inonge G5 Bundle. Actually is the best value for the price! Thank you
Matteo Galan –
Excellent service and attention! A big thank you to the entire team, especially Rocco, for guiding me through the entire purchase process with professionalism and care.Highly recommended!
Matteo Galan (store manager) –
Excellent service and attention! A big thank you to the entire team, especially Rocco, for guiding me through the entire purchase process with professionalism and care.Highly recommended!
Carlos Alcantara –
Gracias American Oxygen, muy buen Servicio y super amables. Valio la pena viajar a Miami. Gracias por la guia, Saludos!!
Carlos Alcantara (store manager) –
Gracias American Oxygen, muy buen Servicio y super amables. Valio la pena viajar a Miami. Gracias por la guia, Saludos!!
Gerardo Gonzales –
Thank you to Advice to my mom about this Unit, we fly to El Salvador without any problem. Thank you Emanuel for such amazing work.
Gerardo Gonzales (store manager) –
Thank you to Advice to my mom about this Unit, we fly to El Salvador without any problem. Thank you Emanuel for such amazing work.
Ricardo E. Morra –
Thanks to help my father with his Purchase of Inogen One G5, and help with the schedule delivery at our vacational Home.
Yanina Gutierrez –
Gracias American Oxygen sobre todo a Esteban por brindarnos tal asistencia, dado que compramos desde el Exterior para ir a retirar en USA al llegar en neustrsas vacasciones. Todo super transparente y atentos. Super Confiables y recomendables!!
Amanda Verta –
Excellent machine, incredible price, and the service was excellent. I recommend this shop and also Rocco. How cute!
Joe Hart (verified owner) –
On first trip out of house, battery level went from 97 percent to 72 percent in about 20 minutes on level 4 oxygen.
Victor –
I really appreciate the free upgrade — not only was the shipping faster, but my order arrived in Colorado in just 2 days. Amazing service. Thanks again!