What must be monitored to ensure cabin pressurization is maintained?

To ensure that cabin pressurization is maintained effectively, it is crucial to monitor outflow rates and cabin altitude. The outflow rate refers to the amount of air being expelled from the cabin, and it must be balanced with the rate at which pressurized air is being introduced into the cabin during flight. Maintaining an appropriate outflow rate helps prevent excessive cabin altitude, which can lead to hypoxia and other altitude-related complications for passengers and crew.

Monitoring cabin altitude is essential as it indicates the pressure level within the cabin relative to the outside atmospheric pressure. Keeping the cabin altitude within safe limits is critical for passenger comfort and safety, as a higher cabin altitude can result in the need for supplemental oxygen.

In summary, both outflow rates and cabin altitude are vital parameters to monitor to ensure that the cabin remains properly pressurized throughout the flight, ensuring the safety and comfort of everyone on board.