A ventilator circuit is a medical device that connects the patient to the mechanical ventilator machine, allowing the delivery of oxygen and removal of carbon dioxide. It consists of various components, including breathing tubes, connectors, and filters, which ensure the safe and efficient delivery of air to the patient’s lungs. The tubes are usually made of lightweight, flexible plastic materials and come in different sizes to accommodate patients of varying ages and sizes. The connectors help to secure the tubes in place and prevent any leaks. Filters are essential to remove any impurities or bacteria from the air supply, reducing the risk of infection. Ventilator circuits are widely used in hospitals, clinics, and emergency rooms for patients suffering from respiratory distress due to severe illnesses or injuries.