The Xbox 360 accumulates dust and debris from daily use, as do all electronic devices that have ventilation holes in them. Keeping the fan that is inside of the Xbox 360 clean will help keep the internal components from overheating and will help keep the device running more efficiently. Cleaning the Xbox 360 fan is not complicated, although you must open and partially disassemble the Xbox 360 to access the fan. Expect to take at least a half hour to get the fan out of the Xbox 360 to clean it.