What shape should the spray be? How far away from the root for fruits and vegetables? How much pressure? How often spray and how long? What is nutrient made of or how do you get it? Do you need special water?
Aeroponics Nutrient and Sprayers
Certified GKH Gardening Expert
Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/garden-how-to/projects/diy-aeroponics-how-to-make-a-personal-aeroponic-growing-system.htm