Aircraft decompression is a rare but potentially dangerous event that occurs when the pressure inside an aircraft cabin drops unexpectedly. At cruising altitudes, where commercial jets typically fly, the outside air pressure is too low to support human life. To ensure passenger safety, aircraft are equipped with sophisticated systems that maintain a stable and breathable cabin environment. Understanding the science behind aircraft decompression and the measures in place to prevent it is crucial for appreciating the safety of modern air travel. This article explores the mechanics of cabin pressure, the causes of decompression, and the systems that keep passengers safe. This image illustrates the critical safety systems in an aircraft cabin during decompression, including oxygen mask deployment, cabin pressurization, and passenger safety protocols. The Basics of Cabin Pressure At cruising altitudes of  30,000 to 40,000 feet (9,000 to 12,000 meters) , the outside air pressure is o...