Toshibas Nano Wash series with superior innovative technology Ultra Fine Bubble technology generates nano- sized particle bubbles activating detergent and penetrating deep into fabric fibers. Duo-Active Roller enhances clothes movement, prevents clothing tangles.Ultra Fine BubbleUltra Fine Bubble (UFB) generates invisible Nano-Sized particle bubbles that are 10-200 times smaller than fiber gaps. They effectively deliver detergent deep inside fiber gaps, reaching stains and removing them.Duo-Active RollerDuo-Active Roller enhances water flow to prevent clothes from tangling.Drum IlluminationLED equipped in drum lights up when UFB is generated. It also works when glass lid is open for convenience in dark places.S-DD InverterThe Next Generation of Direct Drive Motor is S-DD Inverter Motor 48 new magnet named Neodymium are used, which are more powerful and energy-saving than Ferrite magnet which is used for DD Inverter Motor. The features for S-DD are low noise & high accuracy, powerful & rapid rotation, less energy consumption, thin & light.