It's a manageable job to wash an oscillating fan. The only thing you must do is take apart the fan grills (for pedestal fans) and then clean the grills' blades and other vital components, which get filthy over time. Take a clean cloth and liquid cleaner to wash your fan. You can use a blower to clear the dust and dirt for quick and easy cleaning. However, cleaning with liquid solvents and dry cleaning will make your home sparkle like new.