The oxygen flush valve - all true except

It delivers flow between 35 to 70 L / minute minimum flow is 35 L / minute. There is a direct tubing connecting the O2 pressure regulator to the O2 flush. It gives 35-70 L/min of flow with a pressure of 45-60 PSIG . Its main use is during the mask ventilation with a lot of leak between the mask and the patient's face especially in elderly patients and in patients with difficult airways and also acceptable power source for jet ventilation for providing paial, if not total, ventilatory suppo in most clinical situations.