A multifunction resuscitator that uses high-flow oxygen. This device often can be triggered by negative pressure caused by an inhaling patient as well as operated by a button while the operator watches the patient’s chest rise. During resuscitation, it is necessary to use the positive pressure aspect of this device and manually trigger or compress the button, as the patient is not able to open up the valve by inhaling. These devices should be fitted with an over inflation high-pressure alarm to avoid gastric distention and/or barotrauma.