Just use compress air or a can of air. Recommends unplug the system and power drain the PC for a second and then use the can of air. Leave it dry for couple minutes and reconnect the power. There's a chance to create a static spark with the hose attachment with the household vacuum since everyting is made out of plastic. You learned hot to get things charged back in science or physics classes; unless you want to see how that really works on computers!