Aircraft and systems
Pressurization
At a glance
Meaning of Pressurization
The system maintaining a suitable air pressure inside an aircraft cabin.
More about Pressurization
Pressurization controls cabin pressure while the aircraft operates at higher altitudes. Cabin altitude describes the pressure environment experienced by people inside.
The cabin is not normally held at sea-level pressure throughout the flight. Oxygen equipment provides a separate protective function if cabin pressure is lost.