Washington, D.C.A slew of new products, including bacteria-eating paint and Apple Watch-controlled lighting, could transform how our homes work in the future.

They don’t just save energy and water. They also could help avoid bird deaths, remove pollutants from the air, keep homes running during power outages, and provide safe drinking water to poor people worldwide.

While some are high-tech and high-end, others are simple and cheap. Here's a look at 10 showcased at this year's Greenbuild International Conference and Expo, an annual meeting of the private U.S. Green Building Council that ended Friday in the nation’s capital.

The incandescent light bulb is so yesterday, but LEDs (light emitting diodes) are no longer just 10 times more energy efficient. They’re now smarter and more