Inogen One G4 AC Power Supply Oxygen Concentrator while Fisher & Paykel's Glider 6482R 2 while Fisher & Paykel's Glider Straps and and Easy Release Cord distribute pressure equally across the face and automatically adjust the mask alignment during sleep As the air flows to the mask the thin outer silicone flap of the cushion seals against the face while the inner wall supports and stabilizes the mask position This InogenOne G4's Universal AC Power Supply automatically adapts to input voltages from 100V to 240V (50 60HZ) permitting use with most AC (Wall) power sources throughout the world USAGE: When plugged into wall power this power supply WILL charge any battery installed in your G4 concentrator regardless of whether the device itself is currently turned on