Psi (pound-force per square inch) is a unit of pressure measurement that indicates the force exerted by compressed air on each square inch of a surface. It is used to evaluate the intensity with which the air is expelled by the compressor.
Understanding the pressure in psi is fundamental to choosing the right air compressor for each task, as higher psi values are needed for more demanding tasks, such as in large industrial operations, while compressors with lower pressures meet the needs of small domestic projects, such as inflating tires or using hand tools.
The psi capacity determines the maximum pressure the compressor can generate, which is crucial for operating specific tools such as impact wrenches, paint guns and pneumatic drills. Understanding the right psi ensures that the equipment can perform more demanding jobs more efficiently and without compromising safety.

The lifespan of this type of equipment varies according to the type and frequency of use.
On average, high-quality compressors can last 10 to 15 years with proper maintenance.
Industrial models, especially screw compressors, tend to have a longer service life due to their robust construction.
Maintaining a maintenance schedule, including changing filters and proper lubrication (for lubricated compressors), helps to extend the life of the equipment and prevent premature failure.