A ceiling fan is a fan mounted on the ceiling of a room or space, usually electrically powered, that uses hub-mounted rotating blades to circulate air. They cool people effectively by increasing air speed. Ceiling fans are in residential apartments a source of cooling. They are also used to dry clothes during the rainy season. 2. In cold regions, the ceiling fans are equipped with reverse speeds, which circulate the hot air in the room. A ceiling fan’s primary purpose is to keep us cool. It doesn’t cool the air temperature — we feel cooler because the fan moves the air around us, a process called evaporative cooling.
Evaporative cooling works like this: A cold day will feel even colder if there’s a breeze because of the wind chill factor. The same thing happens if we sweat on a hot day and we put the ceiling fan on — the moving air provides a breeze, which acts the same as wind chill, helping to cool us.
Many people turn the air conditioning to a low setting in warm summers to achieve an optimal temperature indoors. You can set air conditioning to a slightly higher setting, then use ceiling fans to create a cool breeze and make the room feel more fresh.
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