The **airbag** is a passive safety device that inflates in the event of an accident to protect passengers. Its main function is to **slow down the sudden movement of the body** and prevent people from violently hitting parts of the vehicle. It also protects the face and eyes from broken glass and other elements that become detached during an accident.

However, the airbag **should not be used as the sole protection element**. It is essential to use it together with the **seat belt**. The seat belt helps reduce the impact against the airbag, ensuring that the body is in the correct position for the airbag to function effectively. Additionally, it is recommended to maintain a distance of at least 25 centimeters between the chest and the steering wheel to avoid injuries when the airbag inflates.

Therefore, the airbag is a complement to the seat belt, and both should be used together to provide maximum protection in the event of an accident.