iSonic F3900For patient home use Compact ultrasonic cleaner uses sound waves to penetrate into crevices and cavities to remove particulates from dentures, retainers, and mouth guards Combined with iSonic White Denture Cleaning Powder Power button initiates a five minute cleaning Compact size for tabletop use Operates on 100 120V Accessories included: plastic tray and one packet of iSonic White Denture Cleaning Powder Tank Cap. 200 ml 0. 4 Pt Max. Level 140 ml 0.