Usage patterns
扇風機をつけるto turn on a fan
It was hot, so I turned on the fan.
扇風機を消すto turn off a fan
I turned off the fan before going to sleep.
扇風機の風に当たるto be exposed to a fan's breeze
I read a book while sitting in front of the fan's breeze.
扇風機が回るfor a fan's blades to spin
The fan is spinning slowly.