Kamen's device purifies water through a distillation and condensation process tied to a proprietary system designed by Deka. Kamen said the purifier can handle any contaminants and produce 10 gallons of water an hour on 500 watts of electricity.
The company claims the purifier can convert 75 percent of seawater and up to 95 percent of contaminated water into drinkable water, but it acknowledges that it does not yet have outside verification of the purifier's reliability.
He's got a new generator, too.
Update: More here, from September 2009.