An advertising billboard in Peru produces clean drinking water from the humidity in the air.
Engineers from the University of Engineering and Technology in Lima teamed up with an advertising agency to produce the sign which provides clean water to people in the local vicinity who often struggle with supplies due to tough conditions and very little rain. To date the billboard has produced more than 9,000 litres of water, a rate of 96 litres per day.
"The panel traps humidity in the air and transforms it into water. It's that simple," said university spokesperson Jessica Ruas. "We want to change the minds of future engineers and inspire them."
"Just outside Lima, Peru, a billboard provides drinking water to whomever needs it - mainly, its neighbours."
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Source: BBC News
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