No matter how neat you are, no matter if you cover the thing in plastic…your computer accumulates a lot of dust in those tiny nooks and crannies, and the Blaster is the only thing to get it out. Blow your computer maintenance troubles away with the Blaster 12 oz. Pressurized Canned Air from Belkin. Excellent for cleaning keyboards, CD, DVD, CD-R drives, disk drives and printers. This highly effective non-abrasive and moisture-free product is just what the Computer Doctor ordered to prolong the life of your computer.