Portable air coolers are evaporative air cooler with a throw of 8 to 10 feet. In some countries, the coolers have been developed with a throw of up to 30 feet, but such coolers suffer a major disadvantage of being very noisy since they have exhaust fans as air blowers in them as the moving machine for air movement. here is a container holding everything, the air fan, the water pump, the container for water and the controls of the air cooler.