Which one of the following is used for fogs composed of very fine droplets?

Centrifugal energy nozzle is used for fogs composed of very fine droplets.
Centrifugal sprayer is a high-speed spinning disc (flat, concave or cage, or perforated cylinder atomizes the spray liquid into fine droplets.
It is used to spray large areas with small quantity of the spray liquid. It is suitable for spraying shade or Orchard trees with droplet sizes 80 - 100 µ. For mosquito control, the droplet size is 50 - 70 µ. Such sprayer is High Concentration, Low Volume and Low Pressure.