Eco-friendly signage in Peru generates more clean air than 1,200 trees.

Peru is developing at break-neck speed, but as construction continues, so too does the amount of pollution and related health conditions. Instead of contributing to the problem with the rebuild of their new campus, UTEC, an engineering college in Lima, decided to create a billboard with the help of ad agency FCB Mayo that sucks an unbelievable amount of pollution right out of the air.

The billboard, which uses thermodynamic processes to trap pollutants in a water filter, can clean roughly 100,000 cubic meters of air every day, which is equivalent to the output of 1,200 trees. Apart from it's impressive environmental impact, which has an impact up to five blocks away, the billboard also acts as a real-world example of what students can learn to do at the college.

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