Inogen One G4

Durable, Responsive, Reliable

The Inogen One G4 portable oxygen concentrator supports independence with a lightweight design and a double battery pack that delivers up to 5 hours of cordless power. The durable outer shell resists damage and protects from the bumps of everyday life. Choose from three separate flow settings so you can easily find what works best for you.

This system features advanced technology like the Breath Detection Alert system, which delivers audible and visual alerts when breath goes undetected for 6o seconds. Inogen’s Intelligent Delivery technology rapidly detects breath and delivers oxygen in the first 400 milliseconds. This helps ensure oxygen delivery is most effective. The Intelligent Delivery technology also works to adjust oxygen rates during exercise and during sleep, so you can feel secure using the Inogen G4 POC for 24/7 use.

Please note that a valid prescription is required for us to ship your portable oxygen concentrator. If you need assistance obtaining your RX, we are happy to help. Give us a call today to get started at 1.888.747.7590


  • Easy to read LCD interface
  • 3 flow settings
  • Lightweight at only 2.8 lbs.
  • Breath Detection Alert technology
  • Lithium ion battery provides hours of cordless oxygen therapy, includes DC charger for mobile use
  • FAA approved for in-flight use

What’s Included

  • Inogen One G4 portable oxygen concentrator
  • G4 shoulder strap
  • G4 single battery
  • DC power cable
  • AC power supply

Inogen One G4 Specs

  • Weight: 2.8 lbs.
  • Dimensions: 7.2″ H x 2.68″ W x 5.91″ D
  • Oxygen Flow: flow settings 1-3
  • Power Settings: AC/DC
  • Battery: single battery up to 2.7 hours, double battery up to 5 hours
  • Noise Level: 40 dBA (on setting 2)
  • Warranty: concentrator 3 years, sieve beds and accessories 1 year
  • Use: stationary, portable, travel
  • FAA approved for in-flight use