Airbag systems are safety devices in vehicles designed to inflate rapidly during a collision, providing a cushion for passengers. They are typically located in the steering wheel, dashboard, and side panels, and are triggered by sensors that detect sudden deceleration or impact. When a crash occurs, the airbag inflates within milliseconds, reducing the risk of injury by preventing passengers from hitting hard surfaces. Modern vehicles may have multiple airbags, including front, side, and curtain airbags, to enhance protection for all occupants. These systems are an essential part of automotive safety, working alongside seat belts to save lives.