During the summer, we all have to experience some unpleasantly hot days. The air conditioning is good and can regulate the temperature well, but it does not provide you with a direct breeze. This is where ceiling fans come in to play. They provide air circulation from an elevated position, and since most of them have multiple settings, you can set it to whatever you want at the time.
Ceiling fans do not only need to be used indoors. Outdoor ceiling fans are useful for making the air outside cooler, and since we humans like to be comfortable no matter where we are, this is certainly a good benefit.