Emergency medical devices for treating trauma, namely, ventilators, bag-valve mask devices, drainage tubes for medical purposes, occlusive compression bandages in the form of chest seals, chest decompression needles, and chest trauma kits primarily consisting of chest seal occlusive compression bandages, chest decompression needles, and a chest needle placement guide used for chest decompression in the treatment of tension pneumothorax and penetrating chest trauma; chest trauma kits primarily consisting of chest decompression needles and also including chest seal wound dressings, and a chest needle placement guide used for chest decompression in the treatment of tension pneumothorax and penetrating chest trauma