Hey guys, I'm sort of new to the form but have been lurking for awhile. I have a dell laptop and lately the fans at the back have been starting to make alot of noise. A friend recommended that I buy a can of compressed air and clean the fans, because through normal usage the fans will naturally accumulate "crud" buildup over time, which may destablize the fan etc. My question is, if I blow compressed air at the fan, won't it just blow all the crud into the computer? I can't exactly disassemble the laptop and blow the fans from inside... so do I use compressed air and try to clean the fan or not? Thanks!