Why does an airbag come out so fast?

Airbags deploy quickly to provide immediate protection during a collision, reducing the risk of injury to the occupants. The rapid inflation is achieved through a chemical reaction that generates gas in milliseconds when the car's sensors detect a crash. This swift deployment is crucial because it ensures the airbag is fully inflated by the time the occupant moves forward due to the impact, creating a cushion that absorbs energy and minimizes injury.