Dental Unit with Saliva Ejector can be operated by foot controlled switch, auto spittoon flush and cup filler control system. The Dental Unit with Saliva Ejector requires 220V - 50 HX power, 24 V motor voltage, 0.2MPa - 0.4 MPa water pressure and 0.5MPa air pressure to operate efficiently. Dental Unit is also offered with single set operating stool and luxurious operating light. Universal Eangineering Co. Manufactures Dental Unit with Saliva Ejector.