It might sound like a simple task, but buying a ceiling fan is not something you should to at the spur of the moment.
In this article you will find the 4 things I think you should consider before you go out and buy a ceiling fan that is wrong for you.

Placement
First you focus on the room where you want to install the ceiling fan. Things like ceiling height and floor space are important factors when buying a ceiling fan. If the room is small it looks best to choose a fan with small blades. If you have low ceilings I would recommend buying a low profile ceiling fan.

The selection
I recommend choosing a store with a large selection. There are many varieties of ceiling fans, some you might not even know about. There are models with light fixtures or kits that will allow you to mod a light fixture to the fan.
More blades means more air movement and less rotation. This usually means less noise.
Some fans come with remote controls and some don’t, make sure you know if this is needed before you make the wrong choice.

The Price
Set your budget before you buy. A ceiling fan costs anywhere from 50 dollars to several hundreds. You can order specialized models in many colors.

Installation
If you aren’t used to doing electrical work I would recommend hiring an electrician. If you think you are up for the talk I would recommend this guide on how to install a ceiling fan.