Anaesthetic machines play a crucial role in surgical procedures by delivering a precise blend of gases and vapours. These machines are designed to carefully regulate the proportions of these substances to manage and adjust a patient’s level of consciousness and pain relief. During surgery, the machine controls the concentration of anaesthetic agents to ensure the patient remains appropriately sedated and pain-free throughout the procedure. By tailoring the mixture of gases and vapours, anaesthetic machines provide the necessary balance to maintain the desired state of anaesthesia, ensuring a safe and controlled environment for both the patient and the surgical team.