This is the replacement AC power supply for the Inogen G2 and G3 portable oxygen concentrators.
Perhaps you lost your power supply, or your cat chewed through it (please share a pic of the pet!), this is a replacement. This device is used to power either device from an AC (wall) power source. It can also be used as an international power supply by replacing the wall cord portion. It will auto sense the AC power from 100 to 240 volts.
Includes power supply and AC input cord.
Power: 100-240V, 50-60Hz – auto sensing to allow worldwide use.