Advert turns air into drinking water

Just outside Lima, Peru, a billboard provides drinking water to whomever needs it - mainly, its neighbours.

The panel produces clean water from the humidity in the air, through filters.

Researchers at the University of Engineering and Technology (UTEC) in Lima and advertising agency Mayo Peru DraftFCB joined forces to launch it.

UTEC says it wanted to put "imagination into action" and show that it is possible to solve people's problems through engineering and technology.

"A billboard that produces drinking water from air," says the billboard up high. And it does what it says on the tin: so far, the billboard has produced over 9,000 litres of drinking water - 96 litres a day.

The panel is strategically located in the village of Bujama, an area south of the capital city that is almost a desert, where some people have no access to clean water.

- BBC.co.uk