The Inogen One is a “Pulse-Delivery Only” FAA Approved Portable Oxygen Concentrator. It delivers oxygen at settings 1-5.

Weight: 9.7 lb
Dims: 11.62″x 6″ x 12.39″
Battery Duration:
Setting 1: 3.0 Hr
Setting 2: 3.0 Hr
Setting 3: 2.5 Hr
Setting 4: 2.5 Hr
Setting 5: 2.0 Hr