Szalajj wrote:
Whatever you do with the canned air, DO NOT SHAKE OR TIP THE CAN. The air freezes, and you WILL end up with moisture in the computer.
Canned air is safe for regular keyboards, but I would think twice before using it on the inside of any computer for more than a few quick bursts at a slight distance.
Be careful not to blow the keys off of your laptop keyboard. I did that last year, and a friend was kind enough to obtain and install a replacement for me.