'compressed-air-in-a-can' cleaning proceedure for laptop?

[lectrocrew]

I plan to shut down my HP Compaq 6715b laptop in order to blow the dust out of it. (it runs 24/7 running Folding at Home assignments). I know that when blowing out my desktop's I always secure the cooling fan so as not to over-rev the fan motor when using compressed air. But desktop fans are easy to access. Is there a way to secure the cooling fan on my laptop while cleaning other than disassembly?

[Geek-9pm]

Avoid aiming right at the fan. Use short busts rather that a long blast.

[patio]

Q-Tips...

[lectrocrew]

Got it done. I had forgotten how easy it is to remove the keyboard on this machine (3 screws and 4 lock tabs) . With it removed access to the fan is easy. A q-tip works fine for preventing the fan blade from spinning.
Thanks.