What are the required specifications for a Portable Oxygen Bottle (POB) during preflight checks?

The correct specifications for a Portable Oxygen Bottle (POB) during preflight checks include having at least two masks and being filled to a minimum of 1200 PSI. This requirement ensures that there are sufficient resources to assist multiple passengers in an emergency situation where supplemental oxygen may be needed. The presence of two masks allows for the possibility of aiding more than one individual simultaneously, thereby enhancing safety and preparedness for the crew.

Having the POB filled to at least 1200 PSI provides assurance that there is an adequate supply of oxygen available in case of an emergency. This pressure level is considered the minimum to ensure functionality and sufficient delivery of oxygen. Meeting these specifications is critical in ensuring that flight attendants can respond effectively to emergency situations involving hypoxia or other conditions requiring supplemental oxygen.