A ventilator, also known as a mechanical respirator or breathing assistance device, is a medical device used to provide mechanical ventilation support to help patients breathe. By setting oxygen concentration and pressure, the ventilator provides necessary ventilation support. It is widely used in intensive care, operating rooms, and rehabilitation centers. It features advanced control systems and sensor technology to monitor respiratory rate, tidal volume, and oxygen saturation, adjusting parameters as needed. Some advanced ventilators offer non-invasive ventilation to reduce patient discomfort. It is a critical device for treating respiratory failure and providing life support.