My laptop just came back after servicing and the only vent which throws air out of the laptop is cleaned properly and thermal paste applied. Temperatures have improved and I would love them to stick that way. Now I don't want the debris to build up again so I am using a hair dryer which throw air with minimum pressure to blow any light dust off the vents and planning to do it every week. Is it enough to keep it cleaned or should I go with some more aggressive measures?