A: It means the device has been inspected, repaired if needed, sanitized, and tested to meet performance standards—restoring it to like-new condition.
SKU: BA-300
Used Inogen One G3 Portable Oxygen Concentrator – Pulse Dose | Single (8 Cell) | BA
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$995.00
$1,099.00
9.46% OFF
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Key Features
- Description
- Parts
- Specs
- Included Items
- Reviews 17
- Q&A
Enjoy proven portable oxygen at a lower cost with this used Inogen One G3 portable oxygen concentrator. Weighing about 4.8 lb with a single battery, the G3 is built for everyday mobility at home, during errands, and for travel.
The Inogen One G3 is a pulse‑dose concentrator with five settings (1–5), delivering oxygen only when it detects your inhalation. It is designed for people whose prescriptions allow pulse‑dose therapy rather than continuous flow, so your clinician should confirm that a portable pulse‑dose device fits your needs before you choose this model.
This unit is pre‑owned and professionally reconditioned. It has been tested, inspected, cleaned, and sanitized for safe use; as a used device, it may show normal cosmetic wear, but the focus is reliable performance and battery function.
Why choose a used Inogen One G3
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Lower‑cost way to own an Inogen from a recognized portable oxygen brand.
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Good balance of weight and settings: 4.8 lb with pulse‑dose settings 1–5 for many common prescriptions.
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Practical as a daily carry concentrator or value‑focused backup to a home oxygen setup.
Key specs at a glance
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Weight with single battery: about 4.8 lb
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Size (single battery): approx. 8.75 in L × 3.0 in W × 8.25 in H
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Oxygen mode: pulse dose, settings 1–5
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Noise level: around 39 dBA at setting 2 for quiet everyday use
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Published battery life when new: up to 4.7 hours (single) and up to 10 hours (double) on setting 1
Battery and travel expectations
Actual runtime on this used G3 will depend on setting, breathing rate, and especially battery age and condition. Many users add a spare or newer battery, or a DC power option for the car, if they want more predictable runtime for busy days.
The Inogen One G3 meets FAA acceptance criteria for portable oxygen concentrators, and is commonly used for air travel. Airline rules vary, so always confirm your carrier’s requirements and bring enough charged batteries to cover your entire travel day.
Related parts
| Tube Connection | Cannula |
| Model | BA-300, BA-316 |
| HCPCS Codes | E1392 |
| Operating Modes | Pulse dose delivery |
| Altitude Adjustment | Up to 10,000 ft |
| Sound Level | ~39 dBA at flow setting 2 |
| Carrying Case | Yes |
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FAQs
Is this Inogen One G3 new, open box, or used?
This listing is for a used, pre‑owned Inogen One G3 portable oxygen concentrator, not a new or unused open‑box unit. Each device is tested, inspected, cleaned, and sanitized for safe operation, but normal cosmetic wear from prior use should be expected.
What kind of oxygen delivery does the G3 provide? Is it continuous flow?
The Inogen One G3 is a pulse‑dose portable oxygen concentrator, with settings 1–5 that deliver oxygen in pulses when inhalation is detected. It does not provide continuous flow. If your prescription requires continuous‑flow oxygen, you should use a device designed for continuous flow instead.
How long will the battery last on this used G3?
When new, a G3 with a single battery can provide up to about 4.7 hours on setting 1, and a double battery can provide up to about 10 hours on setting 1. On a used unit, actual runtime will depend on battery age, flow setting, breathing rate, and environmental conditions. Many users keep a spare or newer battery available if they need more predictable runtime for long outings.
Can I use the Inogen One G3 for air travel?
Yes. The Inogen One G3 meets FAA acceptance criteria for portable oxygen concentrators and appears on FAA and DOT lists of approved models. Airlines may require advance notice, a physician’s statement, and enough charged batteries for at least 150% of the flight duration, so always check your airline’s policy before traveling.
Who is this used Inogen One G3 best for?
A used G3 is a strong option for value‑focused buyers who want an Inogen POC with settings 1–5 and solid portability, including many seniors, caregivers, and COPD/respiratory patients whose prescriptions fit pulse‑dose therapy and who want a lighter alternative to tanks. It can work as a primary POC or as a backup to a home concentrator.
How do I choose between the G3, G4, and G5?
Choose G3 if you want a budget‑friendly Inogen with settings 1–5 and a good balance of weight and runtime.
Choose G4 if your top priority is minimum weight and your prescription fits settings 1–3.
Choose G5 if you want the widest range (1–6) and longest listed battery options.
If you tell us your prescribed setting and when you plan to use your concentrator (home, walking, travel), we can help you select the best fit.
Is this product covered by Medicare or my insurance?
Most of our products are sold as cash‑pay purchases. However, you can request an insurance‑ready receipt from us after your purchase. This detailed receipt includes the information many insurers ask for (such as item description, cost, and HCPCS code), so you can submit a claim yourself and ask your plan about partial or full reimbursement if out‑of‑network or self‑purchase benefits are available.