Air Cooler is a method of dissipating heat. Air Cooler the latter it is done by using a fan blowing air into or onto the object one wants to cool. The former is to add fins to the surface of the object, either by making them integral or by attaching them tightly to the object's surface. In many cases the addition of fins adds to the total surface area making a heatsink that makes for greater efficiency in cooling. Air Cooler works by making the object to be cooled have a larger surface area or have an increased flow of air over its surface.