The SAM Chest Seal is an occlusive dressing designed for treating open chest wounds – a life-threatening situation that could lead to tension pneumothorax. The SAM Chest Seal's superior adhesion is strong enough to adhere to skin that is subject to sweat, blood, hair, sand or water. A chest seal is indicated when a patient has penetrating chest trauma from neck to navel, on the front, side or back of the chest. The chest seal doesn't control bleeding inside the chest cavity. Instead, the chest seal prevents air from entering the chest cavity. Standard TCCC bag contains a SAM Seal THE SAM CHEST SEAL MEETS COTCCC PREFERRED FEATURES FOR CHEST SEALS Device adheres despite the presence of blood, sweat, hair, and sand Adheres despite storage as defined in Military Standard 810G Easily applied in battlefield situations Has tabs to facilitate removal of adhesive (dressing) Minimum incidence of allergic reactions to adhesive Oval shape; 6-8 inches or larger in size Creates an occlusive seal Ventable through lifting a flap on the seal; reseals well after venting Puncture-resistant packaging; lightweight and ruggedized Long shelf life; inexpensive Integrity and function maintained when stored or carried in folded configuration Configured for ease of use in low-light environments Dual tabs to facilitate placement and removal of dressing Vacuum packed tear and peel pouch Works under extreme heat and cold Dressing and packaging are night vision optimized Elastic for conformability of curved body surfaces Oval shape with thin edge layer that resists lifting or peeling Rapid, highly absorbent 5" x 9" pad included 2 per package