Why is it critical to avoid rapid cabin decompression?

Avoiding rapid cabin decompression is critical primarily because it can lead to serious health risks for passengers and crew. When rapid decompression occurs, the sudden drop in pressure can result in various physiological responses, including hypoxia, where the body does not receive enough oxygen. This can be particularly dangerous at high altitudes where oxygen levels are already lower. Rapid decompression can also lead to barotrauma, causing damage to the lungs and other air-filled cavities in the body due to the rapid change in pressure.

Maintaining a stable cabin environment is essential for ensuring the safety and well-being of everyone on board. Therefore, effective cabin atmosphere control systems are designed to prevent rapid decompression events and minimize potential health hazards associated with significant altitude changes.