Originally conceived to circulate air and cool a room, today's ceiling fans can also reflect a room's style. Ceiling fans are available in many styles, including outdoor versions, with various features.
Hanging Propeller: The majority of residential ceiling fans are this style, which resembles a plane's propeller hanging from a pole attached to the ceiling.
Directional: These fans can be turned at an angle to ventilate a specific area, as opposed to a hanging propeller model which is meant to ventilate an entire room.
Rotational: A combination of directional and hanging propeller fans, rotational models have multiple sets (here there are two) of blades that spin independently of each other. The sets are connected to a hanging pole which rotates the sets of blades on a vertical axis, while they are spinning independently.