Which system works in conjunction with the deployment of emergency oxygen masks?

The Passenger Briefing System is specifically designed to ensure that passengers receive crucial safety information quickly and effectively, particularly during critical situations such as the deployment of emergency oxygen masks. When oxygen masks are deployed, it's essential for the flight attendants to provide clear instructions so that passengers understand how to use the masks properly. The Passenger Briefing System facilitates this by allowing crew members to deliver pre-recorded safety announcements and guidance to all passengers, ensuring they are aware of the procedures during an emergency.

This system is critical because during emergencies, time is of the essence, and effective communication can help keep passengers calm and in compliance with safety protocols, ultimately leading to a safer environment onboard.