The air inside the cylinder is stored at extremely high pressures, which isn’t safe for direct inhalation. The pressure regulator plays a critical role by reducing this high pressure to a safe, breathable level before it reaches the user. Most SCBAs feature a two-stage regulator for consistent airflow regardless of changes in cylinder pressure. https://www.dropbox.com/scl/fi/4oimfl5kgy4xk6la0idvg/Self-Contained-Breathing-Equipment-Dipti-Fire-Services.pptx?rlkey=qm2j5ykgyapync9djtsnkwi6r&st=p5ae0kxt&dl=0