The Chest Drainage Bottle is a medical device used for removal of air, blood, or fluid from the pleural cavity to restore normal lung function. It operates on an underwater seal principle, preventing backflow of air into the chest while allowing continuous drainage. Constructed from transparent material, it enables easy monitoring of fluid levels and drainage condition. The system is commonly used in hospitals during post-surgical care, trauma management, and respiratory treatments. Key Features: Underwater seal design prevents air backflow; Large capacity with clear volume markings; Transparent body for easy monitoring; Flexible tubing for convenient setup; Durable and leak-resistant construction; Suitable for continuous drainage applications. Industrial Uses / Applications: Hospitals and surgical units; Thoracic surgery and post-operative care; Emergency and trauma care; ICU and respiratory treatment; Pleural effusion and pneumothorax management.