Air Compressor Features
In order to choose the right model, you should understand the air compressor features that can handle your jobs and simplify your work:

An oil-free pump reduces maintenance and doesn't mix oil into the compressed air.

A belt-drive system provides quieter operation than a direct-drive system.

Thermal protection stops the motor to prevent damage from overloads.

Adjustable exhaust allows you to direct exhaust away from your work area.

Multiple couplers allow you to handle different tasks, without connecting and disconnecting tools.

Included accessories and tools — such as hoses, nailers and blow guns — add value to your investment. Not all compressors come with air hoses.

You can purchase auxiliary air tanks to increase air storage capacity.
Source: https://besttoolreviews.org/best-air-compressor-for-pneumatic-tools/