A: Very easy. The g5 carry bag and lightweight form (just 4.7 pounds with a single or double battery) make it one of the best portable oxygen concentrators available, helping you move around effortlessly.
SKU: IS-500-NA8-OB
Used Inogen One G5 Portable Oxygen Concentrator | 8 Cell | IS
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$1,099.00
$1,999.00
45.02% OFF
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Key Features
- Description
- Parts
- Specs
- Included Items
- Reviews 6
- Q&A
Get high‑output portable oxygen from a trusted brand at a lower cost with this used Inogen One G5 portable oxygen concentrator. Weighing about 4.7 lb with a single battery, the G5 is built for full‑time use at home and on the go, with six pulse‑dose settings (1–6) to cover a wide range of prescriptions.
Each unit is refurbished, tested, cleaned, and sanitized, and is fully functional. Because inventory can vary, your order may be fulfilled with an Inogen One G5 or the equivalent OxyGo NEXT, which share the same core platform and are manufactured by Inogen with similar performance and specifications.
The G5 delivers pulse‑dose oxygen only, using intelligent delivery to provide a bolus when inhalation is detected, and is designed for 24/7 use when you have access to AC or DC power and appropriate batteries. It is not a continuous‑flow device, so your clinician should confirm that a pulse‑dose portable concentrator is appropriate before you choose this model.
When new, the system can provide up to about 6.5 hours on a single battery and up to about 13 hours with a double battery on setting 1; runtime decreases at higher settings and on used batteries. For used units, actual runtime will depend heavily on battery age, flow setting, and breathing rate, so many buyers add a spare or newer battery if they need predictable performance for long days.
The G5 is FAA‑accepted for air travel, operates at around 38 dBA on typical settings, and includes universal 100–240V AC power plus DC vehicle power capability, making it a strong choice for errands, appointments, road trips, and flights when airline rules are followed.
Related parts
| Model | IS-500-NA8, IS-500-NA16 |
| HCPCS Codes | E1390, E1392 |
| Color | White |
| Filters | Replaceable Particle Filter |
| Operating Modes | Pulse Dose |
| Altitude Adjustment | Auto-adjust up to 10,000 Ft |
| Sound Level | 38 dBA |
| Carrying Case | Included |
| FAA-Approved | Yes |
| Smartphone App | Yes (Inogen Connect) |
| Machine Size Only | Length: 7.19" Width: 3.26" Height: 8.15" |
| Weight with Battery | 4.77 lb |
| AC Input | 100-240 VAC, 50/60 Hz |
| AC Power Supply | 100 to 240 VAC, 50-60Hz, Auto-Sensing 1.0A |
| DC Converter | Included, 13.5-15.5V, 10A Max |
| Oxygen Purity | 87% +/- 6% |
| Battery Duration | Single: Up to 6.5 hours, Double: Up to 13 hours |
| Battery Recharge | Single: Up to 3 hours, Double: Up to 6 hours |
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Basic Features
HCPCS Codes
E1390, E1392
E1390, E1392
E1390 E1392
Color
White
White / Gray
Gray/White
Filters
Replaceable Particle Filter
Removable, reusable air inlet filter
Internal bacteria filter
Operating Modes
Pulse Dose
Pulse Dose
Pulse, Continuous, Sleep
Altitude Adjustment
Auto-adjust up to 10,000 Ft
Auto-adjust up to 10,000 ft
Up to 10,000 ft
Sound Level
38 dBA
~43 dBA (at setting 2)
≤ 43 dB at pulse setting
Carrying Case
Included
Included
Included
FAA-Approved
Yes
Yes
Yes
Smartphone App
Yes (Inogen Connect)
No (no mobile app connectivity)
No
Size And Dimensions:
Machine Size Only
Length: 7.19" Width: 3.26" Height: 8.15"
Length: 9.4 in Width: 5.9 in Height: 3.6 in
11.5 in × 10 in × 6 in
Performance:
AC Input
100-240 VAC, 50/60 Hz
100–240V AC, 50/60 Hz
100–240 VAC, 50–60 Hz, 1.7 A max
AC Power Supply
100 to 240 VAC, 50-60Hz, Auto-Sensing 1.0A
External universal AC power supply (included)
19 VDC, 7.9 A max
DC Converter
Included, 13.5-15.5V, 10A Max
Yes (12–16V DC vehicle power supply compatible)
Input: 11.5–16 VDC, 18 A max Output: 19 VDC, 7.9 A max
Oxygen Purity
87% +/- 6%
87%–96% at all settings (meets FDA requirements)
86%–97% at all settings
Battery:
Battery Duration
Single: Up to 6.5 hours, Double: Up to 13 hours
Standard Battery: up to 4.5 hours (setting 2) Extended Battery: up to 9 hours (setting 2)
Battery Duration: 3.0 hours (pulse setting 2) and 0.9 hours (continuous flow 2 LPM)
Battery Recharge
Single: Up to 3 hours, Double: Up to 6 hours
Standard Battery: ~4 hours Extended Battery: ~6 hours
2-3 Hours (Typical Per Battery)
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FAQs
Is this Inogen One G5 new, open box, or used?
This listing is for a used, Inogen One G5 portable oxygen concentrator (or equivalent OxyGo NEXT), not a new or unused open‑box unit. Each device is professionally tested, inspected, cleaned, and sanitized before shipping; cosmetic signs of prior use are normal, but the unit is verified to operate properly.
What is the relationship between Inogen One G5 and OxyGo NEXT?
The OxyGo NEXT and Inogen One G5 share the same underlying platform and are manufactured by Inogen, with essentially equivalent performance, flow settings (1–6), weight, and battery options. Depending on stock, you may receive either a branded G5 or an OxyGo NEXT, but both are designed to deliver similar pulse‑dose portable oxygen therapy.
Does the G5 provide continuous flow or pulse‑dose oxygen?
The Inogen One G5 is a pulse‑dose portable oxygen concentrator, offering six flow settings (1–6) and delivering oxygen in pulses when it detects inhalation. It does not provide continuous flow. If your prescription specifies continuous‑flow oxygen or you require higher flow at night, your clinician may recommend a different device.
How long will the batteries last on a used G5?
When new, a G5 with a single battery can deliver up to about 6.5 hours on setting 1, and a double battery can provide up to about 13 hours on setting 1. On a used unit, actual runtime will usually be lower and depends on battery age, flow setting, breathing pattern, altitude, and temperature. If long runtime is important, consider adding a new replacement battery or keeping a spare battery charged for travel days.
Can I fly with this portable oxygen concentrator?
Yes. The Inogen One G5 meets FAA acceptance criteria for use on board commercial aircraft, and OxyGo NEXT models based on the G5 platform are likewise marketed as FAA‑approved. Airlines may require advance notice, a physician’s statement, and enough battery capacity (often 150% of flight time plus ground time), so always check your airline’s oxygen policy before traveling.
Who is this used Inogen G5 best for?
A used G5 is well suited for value‑focused buyers who want a compact, high‑output POC with 1–6 pulse settings—for example, many COPD and respiratory patients whose prescriptions allow pulse‑dose therapy and who want strong battery options for daily activity and travel. It can serve as a primary portable device or as a backup to a home concentrator.
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.