Hi there. As per topic title, how is it done? I've heard people using Q tips and slowly cleaning off each of the fan's blades and the interior. I've also heard about immersing the fan in dish washing liquid and water overnight, then letting it dry 2 to 3 days. Question is, would soaking the fan in dish washing liquid damage the motors or cause rust? Or is it different for ball bearing and sleeve bearing fans? Kindly enlighten me here And if, IF you happen to have 1 liter of 90+% alcohol, would it be better to soak the fan in it instead of using dish washing liquid? I know some would advise cleaning using the Q tips but I'm looking for a more effective way..