There are various means to clean a keyboard. If it is just clogged with dust, hair and other different molecules, you can use a screwdriver to remove a few keys from each side of the keyboard and then use the can of light air to blow all of the stray particles out of the keyboard.
Just be forewarned - it is rough to pry out remarkable keys such as the shift keys and the spacebar without breaking them, so you should believably stick to the little...
