What are the cabin pressure controllers responsible for?

Cabin pressure controllers play a crucial role in ensuring the safety and comfort of passengers and crew aboard an aircraft by specifically regulating the cabin pressure. Their primary function is to continuously monitor and manage the pressure in the cabin to maintain it at a safe and comfortable level, particularly during changes in altitude during ascent and descent.

While some cabin pressure controllers are involved in operating the outflow valves to help regulate airflow and pressure, their main responsibility emphasizes directly controlling the cabin pressure itself. This ensures that the pressure within the cabin is maintained at levels that prevent hypoxia and promotes passenger comfort throughout the flight. Therefore, the focus on controlling cabin pressure makes this option the best choice, as it succinctly defines the primary and most critical responsibility of cabin pressure controllers.