Anesthesia devices are medical instruments used to administer anesthesia to patients during surgical procedures. These devices ensure that patients remain unconscious and pain-free while allowing surgeons to perform operations safely. Common types of anesthesia devices include anesthesia machines, which mix and deliver gases, and monitors that track vital signs. The primary components of anesthesia devices include vaporizers, which convert liquid anesthetics into gas, and breathing circuits, which deliver the anesthetic gas to the patient. Additionally, infusion pumps may be used to provide intravenous anesthesia. These devices are essential for effective pain management and patient safety in the operating room.