How is slow depressurization typically experienced?

Slow depressurization is typically experienced as a gradual process rather than a sudden event. This gradual occurrence allows for advanced warning signs, such as changes in cabin altitude, temperature, and pressure, which can be monitored through aircraft instruments. As the depressurization unfolds slowly, it provides time for the cabin crew and passengers to react, such as donning oxygen masks and following safety protocols.

In contrast, other experiences of depressurization, such as sudden decompression, are abrupt and can catch passengers off-guard, leading to immediate physiological effects. Slow depressurization is usually characterized by a period where the cabin pressure decreases slowly without immediate severe impacts, which allows for effective management and preparation by the flight crew.