Floor fan, rotary fan fan / table fan, tower fan

These three are the most common types of bathroom ventilating fans, floor fan and table fan through the fan rotation to air circulation, and the tower fan through the internal wind wheel rotation, the wind through the cross flow fan will air "rejection" to form a gas flow. Floor fan is the most common, occupying a large area; Taiwan bath ventilator fans occupies a small, but can not turn around, covering the smaller area; tower fan occupies small, but the air volume is generally not easy to clean up.