Air bags are safety devices installed in vehicles to protect passengers during a collision. They are designed to inflate rapidly upon impact, creating a cushion that helps reduce the risk of injury. Typically made from nylon, air bags are located in various positions, including the steering wheel, dashboard, and side panels. When a crash occurs, sensors detect the sudden deceleration and trigger the air bag to deploy. This process happens in milliseconds, allowing the air bag to inflate before the passenger makes contact with hard surfaces. Air bags are an essential part of modern vehicle safety systems, working alongside seat belts to enhance protection.