What equipment is referred to as POB?

The term POB stands for Portable Oxygen Bottle. This piece of equipment is essential on aircraft as it provides supplemental oxygen to passengers or crew members who may experience difficulty breathing, particularly at high altitudes where the air pressure is lower. The use of Portable Oxygen Bottles is critical for ensuring passenger safety and comfort during a flight, especially in emergencies where cabin pressure may drop or for individuals with pre-existing health conditions.

The other options, while they may sound plausible, do not accurately reflect standard aviation terminology for POB. Personal Onboard Beverage relates more to refreshments offered in a flight rather than an essential safety device. Passenger Overhead Baggage refers to luggage stowed in the overhead compartments, which involves a different aspect of passenger management. Public Onboard Briefing generally refers to announcements made to inform passengers, which is unrelated to the concept of providing oxygen support during flights.