I had read somewhere a while ago about the misters/emitters used in
aeroponics and that the water droplets that came out needed to be within a certain size range to be effective. I don't know how correct that is but any emitters designed for areponics should be fine. Although while trying to find out more about that particular issue with areponics I have found some good information on aeroponics and I just thought I would post the link to it for anyone that was interested.
aeroponic" target="_blank">Aeroponics - Wikipedia, the free encyclopedia