Inogen One G5 Portable Oxygen Concentrator
Key features
- Purity 90-93%
- Transportation Humidity 95%
- Temperature Range 40Celcius
- Type Portable
- Pulse Flow 1-6Pulse setting
- Weight 2.6kg
Specifications
| Purity | 90-93% |
|---|---|
| Transportation Humidity | 95% |
| Temperature Range | 40Celcius |
| Type | Portable |
| Pulse Flow | 1-6Pulse setting |
| Weight | 2.6kg |
| Oxygen Purity Indicator (OPI) | Yes |
| Battery backup (at 2 pulse setting) | 6.5hours |
| Recharge time | 3hours |
| Backup with external battery pack | 13hours |
| Sound level | 38db |
| Dimensions | 8.15H x 7.19W x 3.26Dinch |
| Operating altitude | 10000feet |
|---|---|
| Outlet pressure | 28.9psi |
| Loss of Power Alarm | Yes |
| System Malfunction Alarm | Yes |
| No Flow Alarm | Yes |
| Indian Voltage Model | Yes |
| Company Headquarters | USA |
| US FDA Approved | Yes |
| FAA Approved | Yes |
| CE Certified | Yes |
Pros and cons
PROS
- 38 dB published sound level is the quietest of any active-SKU pulse portable in India
- 6.5 hours base battery at pulse setting 2 is the longest in the segment — 44% longer than SimplyGo Mini's 4.5 hours
- 1–6 pulse settings cover prescriptions that 1–3 and 1–5 portables cannot service
- Full alarm suite (loss of power, system malfunction, no flow) plus OPI — complete monitoring package
CONS
- 90–93% published purity range is narrower at the top end than 90–96% peer portables
- Inogen India service network is thinner than Philips Respironics — fewer tier-2 city authorised dealers
- ₹2,14,999 indicative retail is ₹4,000+ above the SimplyGo Mini at comparable weight
The Inogen One G5 Portable Oxygen Concentrator is the benchmark pulse-only portable in the Indian market — a 2.6 kg unit at indicative retail ₹2,14,999 (varies by region/dealer), In Stock per manufacturer brochure and e-commerce product listings. At 38 dB published sound level, 6.5 hour base battery at pulse setting 2, and with a 1–6 pulse setting range, the G5 is the currently-shipping portable that active-SKU competitors are benchmarked against. It is US FDA approved, FAA approved and CE certified; it is shipped as an Indian Voltage Model; and its 2-year warranty on the machine (6 months on battery and accessories) per the published description is among the longest active manufacturer warranties in the segment.
What the specs actually mean
Published oxygen purity is 90–93% — slightly narrower at the top end than peer portables (SimplyGo Mini: 90–96%, Freestyle Comfort 5: 90–96%). In practice at settings 1–3, the G5 delivers toward the upper end of its published range, and the 3-percentage-point gap to 96% is small enough not to be clinically meaningful for most patients. The G5 has an Oxygen Purity Indicator (OPI) flagged “Yes” in technical details — alarm below approximately 82% purity.
The 1–6 pulse setting range is the broadest among active-SKU pulse-only portables in the premium segment. SimplyGo Mini: 1–5; Freestyle Comfort 5: 1–5; SimplyGo: 1–6 (but dual-mode); G5: 1–6. At setting 6, the G5 delivers an LPM-equivalent of approximately 2–2.5 LPM depending on breath rate. Setting 6 is the ceiling for patients who need higher effective pulse flow without stepping up to dual-mode portables.
The 2.6 kg weight is the heaviest in the “ultra-light” pulse segment — slightly above the SimplyGo Mini (2.3 kg) and Freestyle Comfort 5 (2.3 kg). The 300 g difference is perceptible in a shoulder bag over a full day of wear but not disqualifying. For most adult caregivers, 2.6 kg is within the all-day-wearable envelope.
Battery backup at pulse setting 2 is published at 6.5 hours from the internal (8-cell) battery and 13 hours with the external (16-cell) battery. At setting 1, 6 hours 35 minutes base / 13 hours extended. At setting 3, 3 hours 27 minutes base / 7 hours 1 minute extended. At setting 5, 1 hour 51 minutes base / 3 hours 48 minutes extended. Recharge time is 3 hours for the internal battery. The 6.5-hour base battery at pulse 2 is the longest among pulse-only portables in the Indian market — 44% longer than the SimplyGo Mini’s 4.5 hours and 63% longer than the Freestyle Comfort 5’s 4 hours.
38 dB sound — the standout spec
38 dB is the quietest published sound level among active-SKU pulse-only portables in the Indian market. It is 1.9 dB below the Freestyle Comfort 5 (39.9 dB), 14 dB below the SimplyGo Mini (52 dB), and 2 dB below the G4 (40 dB). In a quiet Indian bedroom, 38 dB is functionally inaudible against ambient noise — fan, refrigerator, street sounds. For bedside use and shared-space deployment, the G5 is simply the quietest option.
Certifications and alarm suite
FAA, FDA and CE are all confirmed “Yes” in published additional details. The alarm suite is complete: loss of power, system malfunction, and no flow all “Yes.” This is the full monitoring envelope — each of the common real-world portable failure modes is caught by an audible alarm. Combined with OPI, this is a more complete safety package than several peer portables offer.
Who should buy it
The G5 is the default pulse-only portable recommendation in the Indian market for 2026. It is the right buy for any patient on a pulse-flow prescription (settings 1–6) who needs a portable for daily mobility or periodic travel, who values long base-battery life and low sound level, and who is willing to pay roughly ₹4,000–5,000 above the SimplyGo Mini for the spec improvements.
It is the right buy for extended travel profiles — flights of 6+ hours where base-battery endurance matters. The G5’s 6.5-hour base battery covers most single-leg domestic flights without requiring the external pack; the 13-hour extended-battery covers most 1-stop international journeys.
It is the right buy for patients with sound-sensitivity profiles — light sleepers, patients in small bedrooms where the portable might be placed near the head of the bed, shared hospital rooms, long-distance trains where neighbours’ tolerance matters. 38 dB is the quietest you can get in an active-SKU pulse portable.
It is the right buy for buyers whose dealer relationship is with Inogen specifically — some Indian tier-1 dealers standardise on Inogen for portables, and the platform consistency makes ongoing service easier. The 2-year manufacturer warranty on the machine is among the strongest active warranties in the segment.
For households supplementing a home Philips Everflo with a portable, the G5 is a strong pair — the service networks are both structured around imported-unit distribution, and the spec complementarity (continuous-flow home + pulse-flow travel) covers the full prescription envelope.
Who shouldn’t
Anyone on a continuous-flow prescription cannot use the G5 — it is pulse-only. The Philips SimplyGo (4.5 kg, dual mode) or SeQual Eclipse 5 (8.3 kg, dual mode) are the right buys for continuous-flow-on-the-move prescriptions.
Anyone travelling regularly above 10,000 ft altitude — specifically Leh, Spiti, Leh-Manali road — should not rely on the G5. The SeQual Eclipse 5 at 13,123 ft is the only active-SKU portable that covers the highest Indian altitudes.
Anyone whose weight sensitivity is load-bearing (osteoporosis, mobility limitations) may prefer the 2.3 kg SimplyGo Mini or Freestyle Comfort 5 over the 2.6 kg G5. The 300 g difference is real for all-day shoulder-strap wear.
Anyone whose service network priority is Philips Respironics coverage should consider the SimplyGo Mini instead. Philips has deeper Indian tier-2 city service footprint than Inogen, and for buyers in smaller cities, authorised-dealer proximity matters more than the 2 dB sound difference.
And anyone whose prescription tops out at pulse setting 3 should consider whether the full G5 pricing is justified — the discontinued G4 (1.27 kg, ₹2,11,200) or a 1–3 setting active alternative may be a better fit if residual stock is available. In practice, for almost all buyers, the G5 pricing is competitive enough that the additional headroom is cheap insurance.
How it compares to real alternatives
G5 vs Philips SimplyGo Mini
The closest active-SKU head-to-head. SimplyGo Mini: 2.3 kg, 1–5 pulse, 4.5 hours at pulse 2, 52 dB, has OPI, 10,000 ft altitude, ₹2,10,700, Philips India service network. G5: 2.6 kg, 1–6 pulse, 6.5 hours at pulse 2, 38 dB, has OPI, 10,000 ft altitude, ₹2,14,999, Inogen India service network. SimplyGo Mini wins on weight (300 g less) and Philips service depth. G5 wins on battery life (44% longer), sound (14 dB lower), pulse setting ceiling (setting 6), and alarm completeness (adds no-flow). Pick the G5 for spec-sheet strength; pick the SimplyGo Mini for Philips service network in tier-2 cities.
G5 vs Caire Freestyle Comfort 5
Both premium pulse-only portables. Freestyle Comfort 5: 2.3 kg, 1–5 pulse, 4 hours base / 16 hours extended at pulse 2, 39.9 dB, has OPI, 10,000 ft altitude, ₹2,48,640, Out of stock. G5: 2.6 kg, 1–6 pulse, 6.5 hours base / 13 hours extended at pulse 2, 38 dB, has OPI, 10,000 ft altitude, ₹2,14,999, In Stock. G5 wins on base battery (6.5 vs 4 hours), sound (1.9 dB lower), pulse setting ceiling, and current availability. Freestyle Comfort 5 wins on weight (300 g less) and extended battery (16 vs 13 hours). Pick the G5 for spec breadth and availability; pick the Freestyle Comfort 5 if the 16-hour extended battery is clinically required for specific travel profiles.
G5 vs SeQual Eclipse 5
Different capability tier. Eclipse 5: 8.3 kg, dual mode (pulse 1–9 + continuous 0.5–3 LPM), 5.4 hours at pulse 2, 40 dB, has OPI, 13,123 ft altitude, ₹2,87,040. G5: 2.6 kg, pulse only 1–6, 6.5 hours at pulse 2, 38 dB, has OPI, 10,000 ft altitude, ₹2,14,999. Pick the G5 for lightweight daily mobility at altitudes below 10,000 ft with pulse-only prescriptions. Pick the Eclipse 5 when altitude above 10,000 ft, continuous-flow delivery, or pulse settings 7–9 are clinically required.
Indian-market considerations
The G5 is Indian Voltage Model per published additional details. The AC power supply is rated 100–240V, 50–60Hz per the description — wide-input tolerance that handles Indian voltage variability directly. A 1 kVA inline stabiliser is optional for home AC charging in tier-2 cities.
CDSCO approval status is not stated in the published key features or additional details for this SKU in the data we reviewed (CDSCO Medical Device Registry). Inogen has an established Indian regulatory pathway; verify the specific SKU with your supplier before hospital-channel purchase.
Inogen India service network is organised around a set of authorised dealers with Inogen-trained biomedical technicians — thinner than Philips Respironics but more consistent than smaller-brand coverage. In Delhi, Mumbai, Bangalore, Chennai, Hyderabad and Kolkata, Inogen coverage is solid. In tier-2 cities like Ahmedabad, Pune, Jaipur, Lucknow, Chandigarh, coverage varies by city. For tier-3 cities, the usual pattern is a Delhi or Mumbai dealer dispatching parts by courier and a local biomedical technician doing the fitting.
Battery replacement is the most common portable service event. Inogen 8-cell and 16-cell batteries are available in India but typically have 2–4 week lead times because they are sourced on-demand rather than stocked. At purchase, consider buying a spare battery or verifying the dealer’s replacement inventory status.
The 2-year warranty on the machine and 6 months on battery per the published description is among the longest active warranties in the premium portable segment. Warranty claims are generally processed through the purchase dealer, and turnaround is 2–3 weeks for in-warranty service.
Online-vs-hospital channel price gap is narrow on premium portables — typically sub-10%. The G5 is generally a direct-to-dealer online or specialist-retailer purchase.
Verdict
The Inogen One G5 is the strongest pulse-only portable oxygen concentrator currently sold in India. Best-in-class base battery life (6.5 hours), quietest sound (38 dB), broadest pulse setting range (1–6), and a full alarm suite with OPI — it wins on every performance metric that matters for a pulse-flow portable. The only axes on which it loses are weight (vs 2.3 kg Comfort 5 and Mini), purity ceiling (93% vs 96%), and service network depth (vs Philips Respironics coverage in tier-2 cities).
Score it 8.6 out of 10. Points off for the 2.6 kg weight being 300 g heavier than peer 2.3 kg portables, the narrower 90–93% purity range, and the Inogen India service network being thinner than Philips in tier-2 cities. Points on for sound, battery, setting range, alarm completeness, and the 2-year manufacturer warranty. For any pulse-flow prescription at settings 1–6 and altitudes below 10,000 ft, this is the portable to buy in the Indian market for 2026.
