A billboard in Peru doesn't sell products. It sells water — for free.
Lima is a desert city. It almost never rains. But the air? Thick with humidity — up to 98%.
So UTEC, the University of Engineering and Technology, built a billboard that turns that invisible water into something you can drink.
Inside the billboard, five generators pull water vapor from the air using a condenser. Reverse osmosis purifies it. Then it flows into a storage tank — up to 100 liters a day.
A simple tap at the bottom. Anyone can use it.
In three months, the billboard produced thousands of liters. The setup cost? About $1,200.
The billboard sits in Bujama, a dry, poor village south of Lima where clean water is a luxury. Now, locals fill bottles and buckets from a tap on a billboard. It's become a local landmark — and a lifeline.
UTEC's message? Engineering solves real problems. Imagination in action. 💧🌵
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