Adiabatic Cooling Box offers a better cooling performance of dry cooler and cooling tower through adiabatic and evaporative process. It works in cooling wet bulb temperature of air ambient air drawn to pass wet pads by variable speed fans passing wet pads, and uses air expansion and evaporates small quantity of saturated water to remove heat from the air. This enables dry cooler and cooling towers to achieve near wet-bulb temperatures and additional cooling performance.