Inogen One G4 Portable Oxygen Concentrator (Pulse Dose)

ALL Oxygen Concentrator Sales are Final!

*Pulse Dosing

*To set up the machine,download Inogen Connect App and use code:30-F80-11-222 to authenticate.

Inogen One G4 Portable Oxygen Concentrator (Pulse Dose)

Model: IS-400-4CELL, IS-400-8CELL
For Reference Only

ALL Oxygen Concentrator Sales are Final!

*Pulse Dosing

*To set up the machine,download Inogen Connect App and use code:30-F80-11-222 to authenticate.

Inogen One G4 Portable Oxygen Concentrator

The Inogen One G4 Portable Oxygen Concentrator is one of the newest portable oxygen concentrators featuring the latest technology and a 3 year warranty to make sure you have the best user experience. It is Inogen's smallest and lightest portable oxygen device at only 7.2 inches tall and 2.8 lbs.

Inogen Intelligent Delivery Technology - Use it Day and Night

The G4 Portable Oxygen Concentrator provides you with 3 separate oxygen flow settings. The Intelligent Delivery Technology rapidly detects a breath and delivers oxygen in the first 400 milliseconds. 
With flow settings from 1-3, the Inogen One G4 is designed to increase independence for most users 24/7 by delivering oxygen at the start of a breath to ensure users can get what they need in time.

The Intelligent Delivery Technology precisely detects your breathing rate and adjusts the oxygen level to provide accordingly. During sleep, the system provides larger oxygen boluses slowly to correspond with your decreased rate of respiration. If you are doing physical activities, the device will provide quick, smaller bursts of oxygen to satisfy your body's needs.


You can recharge the battery with your car's power port. The unit makes its own oxygen from the air around you, saving you money on buying replacement oxygen tanks. 
The Inogen One G4 comes with a 3-year warranty for the unit and 1-year warranty covers the sieve beds and accessories (battery).

Battery Duration:
Setting of 1

4 Cell Battery: 2 hours 40 minutes, average
8 Cell Battery: 5 hours, average

Setting of 2
4 Cell Battery: 2 hours 15 minutes, average
8 Cell Battery: 4 hours 30 minutes, average

Setting of 3
4 Cell Battery: 1 hours 20 minutes, average
8 Cell Battery: 2 hours 30 minutes, average

Meets FAA requirements

The Inogen G4 meets FAA requirements, so you can enjoy traveling by airplane. It is also very quiet. At only 40 decibels, it produces less noise than a normal indoor conversation. This means you will feel more comfortable in social settings and won't feel like you're disturbing others when you use your concentrator.

Key Features:

• Compact and Lightweight (only 2.8 lbs)
• Noticeably Quiet Operation - only 40 decibels
• Intelligent Oxygen Delivery
• Designed for 24/7 Use

Technical Data
IS-400-4CELL, IS-400-8CELL
E1390, E1392
Machine Weight
2.80 lbs
Machine Size Only
With Single Battery: 2.75 x 6.00 x 7.20 Inches, With Double Battery: 2.75 x 6.00 x 7.75 Inches
AC Input
100 - 240 VAC, 50/60 Hz
AC Power Supply
AC Power Supply 100-240V, 50-60Hz (auto sensing to allow worldwide use)
Power Cord Length
AC: 12 Feet 10 Inches (Approx), DC: 7 Feet 8 Inches (Approx)
DC Converter
DC Power Cable: for mobile use in car
Altitude Adjustment
Up to 10,000 Feet
3 Years Machine, 1 Year Battery and Accessories
Sound/Noise Level
≤ 40 dBa (Typical)
Carrying Case
Adjustable Carrying Case
Reusable Particle Filter, Output Filter
Operation Modes
Pulse Dose 1-3
AC Power Supply Weight
0.85 Lbs (Approx)
Battery Duration
Setting 1: 2.7 Hrs Single; 5.0 Hrs Double Battery | Setting 2: 2.2 Hrs Single; 4.5 Hrs Double Battery | Setting 3: 1.3 Hrs Single; 2.5 Hrs Double Battery
Battery Recharge
Single: 2.7 Hours, Double: 5.0 Hours (Typical Per Battery)
100 to 240 VAC 50 to 60 Hz
Maximum Output Power
20 psig
100-240 VAC, 50/60 Hz; 11-16 VDC.
Power Consumption
40 W on Setting 2
Weight with Battery
With Single Battery: 2.80 Lbs, With Double Battery: 3.25 Lbs
Battery Warranty
1 year
Item Includes

The Inogen One G4 comes with:

  • Inogen G4 unit
  • Rechargeable battery (4 cell or 8 cell)
  • AC power supply
  • DC power cable
  • Carrying bag
  • User manual
  • 3-Year Manufacturer's Warranty
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Q&As (1)
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why cant i order parts
Hi there, unfortunately we no longer carry this product, and have no parts available for this reason. You may need to reach out to the manufacturer for parts.

Here is their website:
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