What is a requirement for an emergency oxygen system?

A fixed flow regulator is essential for an emergency oxygen system because it ensures a consistent and controlled delivery of oxygen to the user. This component is designed to maintain a specific flow rate regardless of variations in pressure within the system, which is critical in emergency situations where a person may need immediate access to oxygen. This regulation helps prevent hypoxia—an insufficient supply of oxygen to the body—by providing a reliable means of oxygen administration.

While a portable oxygen tank, a manual valve for dispensing, and a backup generator may play roles in different contexts or systems, they do not fulfill the primary requirement of maintaining an effective and steady oxygen supply necessary for emergencies. The fixed flow regulator directly addresses the need for safety and effectiveness in oxygen delivery.