The Invacare Solo2 is a FAA Approved Portable Oxygen Concentrator. It delivers both Pulse Delivery & Continuous Flow. Pulse settings 1-5. Continuous Flow settings .5-3.

Weight: 19.9 lbs
Dims: 16.5″ x 11″ x 8″
Battery Duration
Pulse Delivery
Setting 1: 4.5 Hr
Setting 2: 3.5 Hr
Setting 3: 3.0 Hr
Setting 4: 2.5 Hr
Setting 5: 2.5 Hr
Continuous Flow
Setting .5: 4.5 Hr
Setting 1: 3.5 Hr
Setting 2: 2.5 Hr
Setting 3: 1.5 Hr