I have been using ANTI BACTERIAL Keyboard in my LENOVO 3000 series desktop for over 2 years now, The company realised the need 4 the same years back & applied innovation to its products. It releases ions that repel off harmful bacteria from the keys & in between areas. I usually use a small sized painting brush to clean off my desktop & laptop keyboard. I hope people will note this feature next time they'r off to buy a PC !!! ROHIT HANSPAL