What is meant by "cabin depressurization"?

Cabin depressurization refers to a loss of cabin pressure, which can occur due to various reasons, such as a failure in the cabin pressure control system or structural damage to the aircraft. When an aircraft is flying at high altitudes, the cabin is pressurized to ensure that passengers and crew can breathe comfortably and safely. A sudden loss of pressure can lead to hypoxia, where the oxygen levels become insufficient for maintaining normal physiological functions. Additionally, depressurization affects the cabin environment, including temperature and humidity levels, and may necessitate immediate actions, such as the deployment of oxygen masks for passengers and crew. Understanding cabin depressurization is essential for ensuring safety protocols and emergency procedures are effectively implemented in flight operations.