Take your choice of cooling nozzle with different diameters of 0.15 over 0.2 and 0.3 to 0.4 mm. The diameter of the spray droplets depends on the diameter of the nozzle opening. The smaller the opening, the finer the cooling mist. However, this rule only applies to absolutely dry outdoor areas. For the Central European region we recommend a diameter of the nozzle opening of 0.2 / 0.3 mm standard equipment.