electric fan
Standard word for an electric fan, typically with rotating blades.
暑いので扇風機をつけた。
It was hot, so I turned on the electric fan.
この扇風機は首振り機能が付いている。
This electric fan has an oscillation function.
It was hot, so I turned on the fan.
I turned off the fan before going to sleep.
I read a book while sitting in front of the fan's breeze.
The fan is spinning slowly.
扇風機 is a fan that blows air to cool people, while 換気扇 is fixed to a wall or ceiling to exchange stale indoor air with outside air.