Most probably, that device is a car air pump responsible for maintaining tire pressure which contributes significantly to safe and efficient driving… It comprises a motor, pump, and pressure gauge all in one compact system that is applicable for both home as well as professional applications. 1. What is the main purpose of using car air pumpIts role is to fill tire and apparatus with enough pressure level in case you are working on flat tire, It will also be used as a tire gauge. It is versatile and easy to use with a broad range of inflation settings and technological features, including automatic shut-off, digital pressure readings. The car air pump can be used for a series of applications from regular tire maintenance before the vehicular usage to an emergency situation, where quick complement is necessary, then we could consider it as an indispensable item for drivers who worry about the welfare of their own vehicle. and their physical safety.