There are three types of Industrial Ceiling Fans: Box Fan, In-Line Fan and Radial Blade fan. A Box Fan is typically used in small rooms because it is cheaper than an inline fan or radial blade fan. It operates by blowing out the hot air generated by the machine which helps cool the people around it. The downside to these types of fans is that they blow down onto people, which can be unsafe if ever the machinery emits flammable gases (hence why this type should not be used for hazardous environments). An inline fan was designed to move efficiently over long distances. It has a long connecting tube at one end to draw up room temperature air from below and distribute it through two large blades connected to wheels on either end. These fans are typically used to cool the air in a warehouse, manufacturing plant or even an outdoor music scene. Their large size and rigid structure make them too bulky for small rooms and private enclosures (like offices). Radial blade fans operate like any other ceiling fan; they circulate hot room air through their blades and then push down on the people below to cool them off. Radial Blade Fans are perfect for cooling down a large space or long room because of their many blades and strong, balanced air current. The only downside is that it may be too powerful for an office environment where you need segmented doses of cooling along a row of cubicles without obstructing anyone's view.