LAFAYETTE, Calif. (KTVU) - A device looks like an ordinary water cooler, but it can make water out of air. Wayne Ferreira is a former professional tennis player and co-founder of Lafayette-based Ecolo-Blue, which makes AWG's, which stands for automatic water generators.

UNICEF says it is impressed by the concept. "We really believe there is no one solution. But solutions from different places, ideas from different places can make a huge difference in the lives of hundreds of millions of children, said UNICEF's Tanya Accone. Ferreira, who won a silver medal for doubles in tennis during the 1992 Olympics, says he became interested in the technology after he retired from tennis.