Inogen One G4 Portable Oxygen Concentrator Overview
The Inogen IS-400 is a lightweight, portable oxygen concentrator offering reliable oxygen therapy for individuals with respiratory conditions. Its compact design allows users to carry the device easily, promoting an active lifestyle without the restrictions of traditional oxygen tanks. Intelligent Delivery Technology customizes the oxygen dose based on breathing rate, providing intuitive and flexible oxygen therapy regardless of activity. The POC’s sensitive breath detection ensures the user receives the necessary oxygen level while at rest, delivering supplemental oxygen whenever needed.
Vitality Medical offers a variety of portable oxygen concentrators. Make portable oxygen therapy convenient and buy the Inogen One G4 Oxygen Concentrator today!
Key Features


Multiple Battery Options
4-cell single and 8-cell double battery options provide between 2.7 to 5 hours of use.


User-Friendly Interface
Clear LCD screen and control panel make it simple for users to operate and monitor their oxygen therapy.


Quiet Operation
Operating at a noise level of 40 decibels, comparable to a quiet conversation, making it discreet and unobtrusive.


Carry Strap
Adjustable strap with shoulder pad attaches directly to the concentrator or carry bag for hands-free carrying.
Additional Features
- Weighing 2.8 Pounds With the 4-Cell Single Battery and 3.3 Pounds With the 8-Cell Double Battery
- Intelligent Delivery Technology Adjusts the Oxygen Dose Based on the User’s Activity Levels
- Inogen® Connect Bluetooth Mobile App Allows Users To Monitor and Manage Their Oxygen Therapy Conveniently From Their Smartphones
- Approved for Use on Commercial Flights, Making It Ideal for Travel
- Built To Withstand Daily Use and Various Environmental Conditions
- Can Be Operated Using Battery Power During Transport With the Carry Strap and Bag
- Carry Bag With a Detachable Carry Strap Provides a Protective Cover
What's Included
- Inogen One G4 Portable Oxygen Concentrator
- (1) Rechargeable battery
- Carry strap
- Carry bag
- AC/DC power supplies
- User manual
- Inogen Connect app (where available)
- Standard 3-year or lifetime limited warranty
Frequently Asked Questions
- Can I use the Inogen One G4 while it is charging? Yes, the Inogen One G4 delivers oxygen while plugged in and can be used during charging.
- Can the Inogen One G4 be used while driving? Yes, the Inogen One G4 can be used while driving. Use the DC power adapter to connect the device to the vehicle's power outlet, ensuring the device is secure to prevent movement while driving.
- What accessories are available for the Inogen G4 Concentrator? Accessories include additional AC/DC power cables, batteries, external battery chargers, sieve columns, hip bags, backpacks, and replacement particle filters. Vitality Medical sells accessories for the Inogen One G4 Portable Oxygen Concentrator.
- Can I use the Inogen One at night? The Inogen One technology effectively provides oxygen for most ambulatory patients during daily activities and sleep. It is designed for continuous use, 24 hours a day, seven days a week.
- Can the Inogen One be used with my C-PAP/BIPAP machine? No, Inogen does not allow the device to be used in conjunction with humidifiers, nebulizers, C-PAP, or BiPAP, or connected to any other type of device.
Additional Resources
30-Day Returns
- 30-day return policy
- Items must be unopened
For more info view the return policy
Fast Shipping & Handling Most orders are processed and shipped within 24 hours!
Standard 3-Year or Lifetime Manufacturer Warranty We will help you obtain the service covered under your manufacturer's warranty.
Product Specifications
- Manufacturer: Inogen
- Brand: One G4
- Product Numbers: IS-400-NA8, IS-400-NA, IS-408-S
- Application: Portable Oxygen Concentrator
- Operating Temperature: 41° to 104° Fahrenheit (5° to 40° Celsius)
- Operating Humidity Range: 0% to 95% Non-Condensing
- Operating Altitude: 0 to 10,000 Feet Above Sea Level
- Transport/Storage Temperature Range: -13° to 158° Fahrenheit (-25° to 70° Celsius)
- Transport/Storage Humidity Range: 0% to 95% Non-Condensing
- Maximum Outlet Pressure: 20 PSI
- Maximum Output: 630 mL/min; 31.5 mL @ 20 BPM
- Country of Origin: United States
- HCPCS: E1390
- User: Adult
- Portable: Yes
- FAA Compatable: Yes
- Warranty: Standard 3-Year or Lifetime Limited Warranty for Concentrator; 1-Year Warranty for Sieve Beds and Accessories
Inogen One G4 Dimensions and Weight
- Length x Width x Height: 5.91 x 2.68 x 6.5 Inches
- Weight: 2.2 Pounds
Rechargeable Lithium-Ion Battery Options
- 4-Cell Single Battery:
- Weight: 0.62 Pounds
- Device With Single Battery (Length x Width x Height): 5.91 x 2.68 x 7.2 Inches
- Battery Duration: 2.7 Hours @ Setting 1
- Battery Recharge Time: Less Than 3 Hours
- 8-Cell Double Battery:
- Weight: 1.11 Pounds
- Device With Double Battery (Length x Width x Height): 5.91 x 2.68 x 7.79 Inches
- Battery Duration: 5 Hours @ Setting 1
- Battery Recharge Time: Less Than 5 Hours
Oxygen Flow Settings
- Pulse-Dose Settings: 3
- Flow Control Settings: 1 to 3
- Flow Rate: 3 Liters Per Minute
- Oxygen Concentration: 90% - 3% /+ 6% At All Settings
Power Options
- AC Mains Input: 100-240 Volt AC, 50/60 Hertz; Auto-Sensing (Allowing For Worldwide Use): 1.0A
- DC Input: 13.5-15.5 Volt DC,10A Max
- Rechargeable Battery Voltage: 12.0 to 16.8 Volt DC
Operating Sound
- Sound Level: 40 dBA At Setting 2
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