These new portable O2 delivery systems are designed for long term care facilities, hospitals or emergency response. This self contained cylinder/regulator unit is easily transported and provides cylinder status at a glance. Operation is simple as just selecting the desired patient delivery flow. The regulator and contents gauge are protected by a high performance nylon ABS polymer which defies the most severe working conditions. The carry handle fits within the circumference of the cylinder diameter allows the use of current carry cases or cylinder racks.