The dental compressor provides an exemplary modular dental chair system and methods for its use. In one embodiment, a dental compressor, vacuum pump, water  reservoir, waste container and associated fittings, wiring, and plumbing are integrated into a dental chair. The dental air compressor, vacuum pump, water reservoir, and waste container provide the services needed to perform dental procedures. Such a configuration allows the chair to be located and relocated without having to connect to facility centralized air, water, and waste.