What is air suspension and shock absorber?

Air suspension is a shock absorber with a pneumatic baloon installed on it (instead of a spring) and performs the function of maintaining a certain level of the vehicle body relative to the roadway. This is made possible by changing the pressure in the air suspension.

A shock absorber is a device used to dampen vibrations, as well to absorb shocks and hits of moving parts (wheels and suspension), and the vehicle body itself.