An Anaesthesia Machine is an essential medical system used in operating theatres to deliver a controlled mixture of oxygen, medical gases, and anaesthetic agents while supporting patient ventilation during surgical procedures. Modern anaesthesia workstations integrate gas delivery, flow control, vaporizers, breathing systems, mechanical ventilation, monitoring, alarms, and scavenging functions into a single unit, helping anaesthesia professionals manage the patient's respiratory support throughout the procedure. Designed for reliable performance, safety, and ease of operation, the machine can receive medical gases from central pipeline systems or backup cylinders and regulate them before delivery to the patient. Depending on the model and configuration, features may include electronic or mechanical flow control, agent-specific vaporizers, integrated ventilator modes, CO₂ absorption, breathing-circuit systems, oxygen monitoring, pressure monitoring, automated system checks, and battery backup.