from what i understand anything that puts water in its vortex state is a benifit.. the inner i guess what you would call eye of the vortex is allowing oxygen to enter and oxidize the water ... it is one of the main ways it helps to kill of the bacteria... it also ups the energy state of the water compound from what i have gathered...
here is the best video i have found on him..
http://video.google.com/videoplay?docid=-5643559434275921302&hl=en
