Window fans: Remove the fan from the window for thorough cleaning. Wipe the blades and grills, and vacuum out the housing before reassembling. Bladeless fans: Use the brush attachment on a vacuum ...

Lemon juice is acidic in nature, making it great for cleaning. To use it, rub lemon peels over the fan blades, then wipe using a wet cloth. Make a paste by mixing 1 tsp baking soda with some water.