A motion repeating itself is referred to as periodic or oscillatory motion. An object in such motion oscillates about an equilibrium position due to a restoring force or torque.
A motion in which the body moves to and fro repeatedly is known as an oscillation.
The motion of a table fan is considered an oscillatory motion because it swings with a specific time period and constantly moves in a circular motion.
Therefore,
A tower fan is a set of small, vertical fans. Its layout is intended for compact areas. The air movement is produced by a rotating inner tube located at the center which pushes the air through the front mesh. A specific type of fan head is a pedestal fan. From the base, slender, vertical support emerges.
The support is attached to a sizable, circular fan head that is two interconnected. The fan heads on desktop and table fans are similar to pedestal fans, although they are smaller to fit more comfortably on a desk.