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Inogen One G4 Portable Oxygen Concentrator System

  • $2,295.00

Battery Option

The Inogen One G4 is the smallest, lightest weight portable oxygen concentrator on the market! Weighing as few as 2.8 pounds and lasting up to 5 hours, you’ll forget you’re using oxygen and remember how much fun it feels to be footloose and fancy free to do whatever you want!

G4 Specs:

Size, Weight

  • Single Battery: (H) 7.2” x (W) 5.91” x (D) 2.68”; 2.8 lbs./ 1.27 kg.
  • Double Battery: (H) 7.79” x (W) 5.91” x (D) 2.68”; 3.29 lbs. / 1.49 kg.

Oxygen Flow

  • Pulse Dose Settings 1-3


  • AC Power Supply: 100-240 V, 50-60 Hz (auto-sensing to allow worldwide use)
  • DC Power Cable for mobile use in car


  • Single Battery: Up to 2.7 hours. Recharge up to 3 hours with AC or DC power.
  • Double Battery:
 Up to 5 hours. Recharge up to 5 hours with AC or DC power.

Noise Level

  • 40 Decibels (at flow setting 2)


  • 3 year limited warranty on the concentrator
  • 1 year limited warranty on the battery and accessories

Purchase Includes

  • Concentrator, single (4 cell) or double (8 cell) battery, depending on purchase, carry bag, AC (wall) and DC (car) power cords, user manual

Additional Accessories

  • Extra batteries, external battery charger, replacement filters, replacement column pair , backpack case, accessories case