This medical oxygen tank comes with valve system, pressure reducer and dosage system. It also permits the opening and closing of pressure while distributing through the connection of the outlet and by controlling the outgoing oxygen flow, which is adjustable from 0 to 12 L/min. The group also includes a safety valve, a pressure reducer, a diameter of manometer 40 f. scale 0-315 bar, an outlet for tube diameter 6 mm and charging connection 21.7 x 14 fil. W. M. Dx. UNI 4406, it also has a flowmeter 0-12 L/min.