What is the function of a scavenging system in anesthesia workstations?

• A. To remove waste anesthetic gases from the clinical area and protect staff
• B. To humidify inspired gases
• C. To monitor airway pressure
• D. To deliver nitrous oxide more efficiently

Answer: (A)

The function of a scavenging system is to capture and remove waste anesthetic gases from the clinical area to protect staff from exposure. It collects gases that escape from the breathing circuit or exhaust port and vents them to a disposal system or suction source, keeping ambient air within safe limits. It doesn’t humidify inspired gases—that’s what a humidifier does. It doesn’t monitor airway pressure—those responsibilities belong to the ventilator and pressure monitoring system. It also doesn’t affect how nitrous oxide is delivered—the gas delivery system controls that, while scavenging only handles exhaust.