HAL® Adult Multipurpose Airway and CPR TrainerThe HAL S315. 400. PK. M advanced airway trainer allows learners to practice recognizing and managing a difficult airway via endotracheal intubation or surgical intervention, perform CPR, and treat tension pneumothorax. Whats more, all of HALs lifelike features operate without external power or batteries. Simply pressurize the internal reservoir using a standard BVM and its ready for use. HALs innovative features and green design make it a powerful