What is the pressure inside a 45 minute Scott Cylinder?

The pressure inside a 45-minute Scott Cylinder is 4500 psi. This pressure standard is critical for ensuring that firefighters have enough breathable air during extended operations, particularly in hazardous atmospheres. The 4500 psi pressure allows for a significant amount of air to be stored in a relatively compact cylinder, enabling the firefighter to operate safely for approximately 45 minutes, depending on their usage and physical exertion levels.

The specific pressure of 4500 psi is also a common industry standard for high-pressure self-contained breathing apparatus (SCBA) used by firefighters, providing consistent performance across various manufacturers. Understanding this pressure ensures that firefighters are equipped with the right knowledge for equipment maintenance, safety assessments, and operational readiness on the scene.