220V AC Cooling Fan on how to use the more peace of mind?

"220V AC Cooling Fan" in use when we should pay attention to what matters to allow such components to better use? Is the cooling fan for routine cleaning and maintenance work. For this type of "220V AC Cooling Fan", in the use of a certain amount of time after the inevitable there will be some dust and other material attached to the top, so that not only looked dirty, but also will have a normal radiator fan heat dissipation have a huge impact, so that it is necessary to periodically clean up dust accordingly. In addition, the clean-up at the same time, we also note such "220V AC Cooling Fan" usage-related components, parts to see if there are unusual circumstances, when in use to avoid impact on the operation of the related equipment.