North American Rescue Hyfin Vent Chest SealDESCRIPTION The HyFin Vent Chest Seal Twin Pack from North American Rescue sets the standard for the prevention, management and treatment of an open and or tension pneumothorax potentially caused by a penetrating chest trauma. Each seal is individually packaged, and is designed to allow the user to apply a seal to an entry or an exit wound (or both if carrying the Twin Pack). This innovative design provides 3 vented channels designed to prevent