How often should you clean an electric fan?

Users are often advised to clean electric fans 2-3 times a year. Regular cleaning of the fan will help the fan operate stably, prolong its lifespan and improve human health.
On the contrary, if the place where you live is not too dusty and you see a lot of dust on the fan blades, it is best to clean the fan once a month during the hottest season and about once every 3 months during the cold season, when the fan is rarely used.
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