It is used in chest drainage systems to remove air, blood, or fluids from the pleural cavity while preventing backflow into the patient. The one-way valve mechanism ensures continuous and controlled drainage, supporting lung re-expansion. It is commonly used in cases such as pneumothorax, pleural effusion, or post-surgical drainage. Designed with medical-grade materials, it ensures reliability and patient safety. The compact design allows easy integration with drainage systems. Supplied sterile and single-use, it is widely used in hospitals and emergency care environments.