An air compressor, also known as an air pump, is a device that converts the mechanical energy of a prime mover (usually an electric motor) into the pressure energy of gas. Its core function is to ...

We earn commissions from purchases you make using links in our articles. Learn more. Whether it's for painting, dusting, inflating, or air tools, sometimes there's no substitute for an air compressor.

When selecting an onboard air compressor, start with the basics. Determine how much pressure (psi) and flow (cfm) is required, then determine the duty cycle. “Ask yourself what you will be doing with ...