... be from 170V~240V Warranty: 2 yea Silent, Oilless Air compressor Specification: POWER: 3/4 HPAIR FLOW:90L/minVOLTAGE:220V ... Silent, oilless Warranty: two yearsOur company is engaging in designing, manufacturing and marketing for all kinds of dental products ... kinds of Dental Chair Unit, Ultrasonic Scaler, Ultrasonic Cleaner, Air compressor, Dental Cbinet, Disposable set and other a lot more. ...