What does the air compressor supply in a dental setting?

In a dental setting, an air compressor is crucial as it supplies compressed air, which is essential for operating various dental instruments, particularly air-driven handpieces and syringes. The pressurized air not only powers the handpieces but also allows for the efficient delivery of air to irrigate and dry the treatment area during procedures. This function is vital for enhancing visibility and control during dental treatments, making the air compressor an indispensable piece of equipment in the dental practice.

The other options do not accurately represent the primary role of the air compressor. Electricity for handpieces is typically supplied through electrical outlets rather than by the air compressor. Cooling for dental tools is generally managed by water or air cooling mechanisms and not by the compressor itself. Finally, while water is essential in the dental environment, it is supplied by a separate plumbing system and not by the air compressor, which is specifically designed for air supply.