Fogging system, one of the developing technologies, is evaporative cooling technology. How does the system produce fog?   The system works by feeding the inlet air with fine water droplets. Drips can be of different sizes depending on the duration of evaporation in the expected ambient conditions. These systems, generally between 20 and 40 microns, pass through high-pressure demineralized water atomization nozzles. Then the water is thrown from the tits. By multiplying the impact pins, billions of water drops are formed.