**Airbags** and the **seat belt** are passive safety elements in a vehicle that work together to protect occupants in the event of an accident.

- **Airbags**: These are air bags that inflate rapidly in the event of a collision to protect passengers. They are located at the front and sides of the vehicle.

- **Seat belt**: Its main function is to keep occupants in their seats during an impact, preventing them from moving abruptly or being ejected from the vehicle. This significantly increases the chances of surviving an accident.

For the **airbag** to function optimally, it is essential to use the **seat belt**. The belt helps reduce the impact against the airbag when it inflates, minimizing the risk of injury. Therefore, even if the vehicle has airbags, it is always necessary to use the seat belt to improve the effectiveness of both protection systems.