What equipment does the anaesthetist need? ‘Bells and whistles’ demonstrates methods of maintaining the airway during anaesthesia and describes the anaesthetic machine. The most basic apparatus used for maintaining the airway is a face mask or an oropharyngeal airway. To prevent aspiration, the method used is intubation by an endotracheal tube (ET tube). A recent invention designed to circumvent the issue of discomfort with intubation is the laryngeal mask airway (LMA). The anaesthetic machine must have a supply of medical gases, a means of providing a volatile agent, a breathing attachment connected to a ventilator which allows for lung inflation, and a monitor that displays the patient's vital signs.