Inogen One G4


The Inogen One G4 is the smallest portable oxygen concentrator Inogen offers, weighing just 2.8 lbs. It is incredibly portable and lightweight, the Inogen One G4 is easy to take with you wherever you go, allowing you to get oxygen anytime, anywhere, without disrupting your life. See if you qualify to get a new oxygen system >

Say Goodbye to tanks

Live the life you want with a portable oxygen concentrator
Simple-to-carry anywhere, anytime at only 2.8 pounds
Simple-to replace/remove rechargeable battery
Simple-to-read LCD display and control function interface

Available battery options

Single battery lasts up to 2.7 hours. Resulting in total Inogen One G4 weight of 2.8 lbs.
Double battery lasts up to 5 hours.
Size 18.28 cm x 15.01 cm x 6.8 cm (with single battery installed)
Weight 2.8 lbs. (1.27 kg) with single battery installed
User interface LCD display with control functions
Sound level 40 dBA at setting 2
Oxygen Flow settings Three flow settings from 1-3
Duration Single battery lasts up to 2.7 hours
Double battery lasts up to 5 hours

Meets FAA requirement for travel
Altitude: Altitude up to 10,000 ft. (3048 m)