UV rays have been used to sterilize equipments since a long time, and thus it was conceived that it could be helpful in kitchen devices like dishwashers, to prevent spreading of bacteria and thus offer perfect cleaning. The Electrolux dishwasher makes use of this technology in its cleaning procedure. There are three steps involved in the cleaning procedure.
Firstly a high pressure of air flow gets passed over the dishes which remove any traces of food. Second step involves steaming the plate to remove the greasy stains and the final step involves UV sterilization. This is a great device, though small in size, it can wash quite a few dishes for you and leave it completely clean.
Check it at http://www.electrolux.in/