Sentry CPR/Resuscitation Masks provide a physical barrier between the person providing and the patient receiving CPR, eliminating direct contact and protects the rescuer and patient whilst providing a life-saving action. The CPR Pocket Mask has a cushioned rim which allows an airtight seal around the nose and mouth of the patient which also means ventilation can be delivered through the mouth and nose simultaneously whilst CPR is being performed. Supplemental oxygen can be attached via an oxygen valve.