Inogen

Inogen One G4 Portable Oxygen Concentrator (Pulse Dose)

Model # IS-400-NA, IS-400-NA8
$2,744.00 $3,292.00 Save 17%
Battery:

Pickup available at RespShop

Usually ready in 1 hour

Starting at $457.33/mo with . Check your purchasing power

30-Day Easy Return. Details

Genuine Inogen Product

What’s included
  • Inogen G4 Portable Oxygen Concentrator
  • Rechargeable Battery (single or double)
  • AC Power Supply
  • DC Power Adapter
  • Carrying Bag
  • User Manual
Good to know
  • Pulse dose oxygen delivery only.

Inogen One G4 Portable Oxygen Concentrator

Built for an active and independent lifestyle, the Inogen One G4 Portable Oxygen Concentrator is one of the smallest, lightest, and quietest oxygen solutions out there. 

Equipped with Inogen’s Intelligent Delivery technology and various power options, the G4 offers worry-free therapy at home or on the road.

At just 2.8 pounds, the Inogen G4 is lighter than your average laptop, making it easy to bring wherever life takes you. 

This FAA-conforming portable oxygen concentrator is roughly 6 inches long and less than 3 inches wide — small enough to fit in the included carry bag, your purse of choice, or on your lap.

With the Inogen One G4, you won’t have to worry about power safety or charging the batteries. Plug it into any wall outlet or charge it in the car — the G4 is equipped with an auto-sensing 100-240V AC power supply for worldwide use and a DC power adapter for mobile use. 

If you prefer to charge the batteries separately, make sure to use the optional G4 External Battery Charger.

General
Model
IS-400-NA, IS-400-NA8
HCPCS Code
E1390, E1392
Manufacturer
Inogen
Basic Features
Warranty
3-Years Manufacturer Warranty
Sound/Noise Level
40 dBA at setting 2
Carrying Case
Yes, included
Color
White
Expected Service Life
5 Years
Filters
Reusable Particle Filter, Output Filter
Operation Modes
Pulse Dose 1-3
Dimensions
Weight
3.3 lbs
Dimensions
(LxWxH) With Single Battery: 5.91" x 2.68" x 7.20", With Double Battery: 5.91" x 2.68" x 7.79"
How long can the Inogen G4 run continuously on battery power?

Refer to the chart below for battery run time* on each setting.

  Single/4 Cell Battery (hrs) Double/8 Cell Battery (hrs)
Setting 1 Up to 2.67 Up to 5
Setting 2 Up to 2.25 Up to 4.5
Setting 3 Up to 1.33 Up to 2.5

*Battery run times are approximate values. Exact battery runtime is affected by a number of factors including operating temperature, battery age, altitude etc.

How much oxygen does the Inogen One G4 generate on each setting?

Approximate maximum oxygen flow at 20 breaths per minute:

Setting Max Oxygen Flow (ml/min)
1 210
2 420
3 630
Can I use the Inogen G4 Oxygen Concentrator on the plane?

The Manufacturer certifies conformance with FAA requirements for in flight use. Some airlines may allow you to power the G4 using onboard electrical power, but availability varies.

Contact the airline at least 48 hours in advance to confirm and inquire about their specific requirements. If onboard power is unavailable, bring enough batteries to last at least 150% of your flight duration.

How long is the charging time? 

Up to 3 hours for the Inogen G5 single battery and up to 6 hours for the double battery.

Can I use the Inogen G4 Portable Oxygen Concentrator while sleeping?

Yes, the Inogen One G4 is built for 24/7 use, including during sleep. Its Intelligent Dose Delivery Technology increases the amount of oxygen in each pulse as breathing rate slows.

Can I use the Inogen G4 with a CPAP or BiPAP machine?

The Inogen G4 is not designed to be used in conjunction with any devices including CPAPs, BiPAPs, nebulizers and humidifiers.

Is the Inogen One G4 battery powered only?

The Inogen One G4 runs off battery power, AC and DC power. An AC power supply and DC adapter are included with the machine.  

Does the Inogen One G4 supply continuous oxygen?

The Inogen G4 only offers 3 pulse dose settings. It does not deliver continuous flow oxygen.

How do I clean and maintain the Inogen One G4 Portable Oxygen Concentrator?
  • Case: Wipe the exterior of the Inogen One G4 using a clean cloth dampened with mild soap and water. 

  • Filter: Clean the particle filter with mild soap and water at least every week. Rinse thoroughly and dry before use. 

  • Sieve beds or columns: Replace the sieve beds every year. The Inogen G4 will alert you 30 days before the sieve beds need to be replaced. 

  • Batteries: Store the batteries with 40 to 50% charge in a cool, dry area when not in use. If you have multiple batteries, rotate their use regularly and avoid leaving them unused for over 3 months. 
Can I leave my Inogen One G4 oxygen concentrator plugged in all the time?

Yes. Leaving the Inogen G4 plugged in with fully charged batteries will not damage the unit or batteries.

Make sure to follow the manufacturer’s instructions on battery maintenance, routinely check the batteries, and replace them as needed.

What is the expected lifespan of the Inogen G4 Portable Oxygen Concentrator?

The expected lifespan of the Inogen One G4 is 5 years. The sieve beds or metal columns last 1 year, while the batteries have a life expectancy of 500 full charge/discharge cycles.

What is the warranty period for the Inogen One G4?

The Inogen One G4 includes a 3-year standard manufacturer warranty. The sieve beds, batteries, and other accessories are covered by a 1-year limited warranty.

How do I connect my Inogen G4 to the app?

Please follow the instructions in the Inogen Connect: Getting Started Guide. The provider code you’ll need to connect the machine to the app is 30-F80-11-222.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Frequently Asked Questions

Need more help? Feel free to contact us and our sleep gurus will be more than happy to help!

Contact Us
How long can the Inogen G4 run continuously on battery power?

Refer to the chart below for battery run time* on each setting.

  Single/4 Cell Battery (hrs) Double/8 Cell Battery (hrs)
Setting 1 Up to 2.67 Up to 5
Setting 2 Up to 2.25 Up to 4.5
Setting 3 Up to 1.33 Up to 2.5

*Battery run times are approximate values. Exact battery runtime is affected by a number of factors including operating temperature, battery age, altitude etc.

How much oxygen does the Inogen One G4 generate on each setting?

Approximate maximum oxygen flow at 20 breaths per minute:

Setting Max Oxygen Flow (ml/min)
1 210
2 420
3 630
Can I use the Inogen G4 Oxygen Concentrator on the plane?

The Manufacturer certifies conformance with FAA requirements for in flight use. Some airlines may allow you to power the G4 using onboard electrical power, but availability varies.

Contact the airline at least 48 hours in advance to confirm and inquire about their specific requirements. If onboard power is unavailable, bring enough batteries to last at least 150% of your flight duration.

How long is the charging time? 

Up to 3 hours for the Inogen G5 single battery and up to 6 hours for the double battery.

Can I use the Inogen G4 Portable Oxygen Concentrator while sleeping?

Yes, the Inogen One G4 is built for 24/7 use, including during sleep. Its Intelligent Dose Delivery Technology increases the amount of oxygen in each pulse as breathing rate slows.

Can I use the Inogen G4 with a CPAP or BiPAP machine?

The Inogen G4 is not designed to be used in conjunction with any devices including CPAPs, BiPAPs, nebulizers and humidifiers.

Is the Inogen One G4 battery powered only?

The Inogen One G4 runs off battery power, AC and DC power. An AC power supply and DC adapter are included with the machine.  

Does the Inogen One G4 supply continuous oxygen?

The Inogen G4 only offers 3 pulse dose settings. It does not deliver continuous flow oxygen.

How do I clean and maintain the Inogen One G4 Portable Oxygen Concentrator?
  • Case: Wipe the exterior of the Inogen One G4 using a clean cloth dampened with mild soap and water. 

  • Filter: Clean the particle filter with mild soap and water at least every week. Rinse thoroughly and dry before use. 

  • Sieve beds or columns: Replace the sieve beds every year. The Inogen G4 will alert you 30 days before the sieve beds need to be replaced. 

  • Batteries: Store the batteries with 40 to 50% charge in a cool, dry area when not in use. If you have multiple batteries, rotate their use regularly and avoid leaving them unused for over 3 months. 
Can I leave my Inogen One G4 oxygen concentrator plugged in all the time?

Yes. Leaving the Inogen G4 plugged in with fully charged batteries will not damage the unit or batteries.

Make sure to follow the manufacturer’s instructions on battery maintenance, routinely check the batteries, and replace them as needed.

What is the expected lifespan of the Inogen G4 Portable Oxygen Concentrator?

The expected lifespan of the Inogen One G4 is 5 years. The sieve beds or metal columns last 1 year, while the batteries have a life expectancy of 500 full charge/discharge cycles.

What is the warranty period for the Inogen One G4?

The Inogen One G4 includes a 3-year standard manufacturer warranty. The sieve beds, batteries, and other accessories are covered by a 1-year limited warranty.

How do I connect my Inogen G4 to the app?

Please follow the instructions in the Inogen Connect: Getting Started Guide. The provider code you’ll need to connect the machine to the app is 30-F80-11-222.

The RespShop Difference

Professional Service Team

Our team is composed of registered respiratory therapists and certified polysomnographic technologists.

Financing Plan Available

You may be eligible for no down payment and a low interest rate for 12 months.

Rewards Points Program

Get rewards points with every purchase. Use your points to save on future orders.

30-Day Risk-Free Exchanges

Rest peacefully with our 30-Day worry-free mask exchange program.