Okay little one, have you ever seen those big, flat fans that people use in church to cool themselves off? That's called a church fan!
It's like a big piece of cardboard or paper that has a handle on it. People hold onto the handle and then use the fan to wave it back and forth to create a cool breeze for themselves.
Church fans have been around for a really long time because churches use to not have air conditioning and it could get really hot inside. So, people would bring their own fans to stay cool during the service.
Nowadays, some churches still use fans as a tradition, and some people even collect these fans as a hobby!