An anesthesia machine is a medical device used to deliver anesthesia to patients during surgical procedures. It combines several components, including a gas supply system, vaporizer, and breathing circuit, to ensure that the patient receives the correct mixture of oxygen and anesthetic gases. The machine allows for precise control of the dosage and helps maintain the patient's vital signs throughout the operation. The machine also features monitoring systems that track the patient's heart rate, blood pressure, and oxygen levels. This information is crucial for the anesthesiologist, who adjusts the anesthesia as needed to ensure the patient's safety and comfort during surgery.