Dutch inventor Daan Roosegaarde designed a revolutionary tool for urban health - a billboard that cleanses smog. <br> <center>![image.png](https://ipfs.busy.org/ipfs/QmYzKAKbyvZ5tpK7iAeYmxFiGiAMzFswfqsRZb45sPULYb) <sup>Photo by Studio Roosegaarde</sup></center> <br> Multiple pollution-cleansing billboards are currently set up in Monterray, Mexico. Each ad space has been coated with a specialized resin that attracts nearby air pollutants and converts them into oxygen when exposed to direct sunlight. The photocatalytic nanotechnology works similarly to the mineral-based surface treatment that allows these [GUNRID curtains from IKEA](https://steemit.com/news/@truthproductions/ikea-developed-a-curtain-that-purifies-the-air) to cleanse airborne pollutants from indoor spaces. The billboard generates the same amount of clean air as 30 trees every 6 hours and it can function for up to five years. <br> > It was great to work with the [UDEM] students and take a problem and transform it into a potential. I am really proud to see them go from academic research to a real project. I do not believe in utopia—a perfect solution—but protopia: step-by-step improving reality. ~ Inventor Daan Roosegaarde <br> [Source](https://www.goodnewsnetwork.org/mexican-billboard-purifies-air-by-eating-smog/) <br> <p><br></p> <hr /> <p><br></p> https://ipfs.busy.org/ipfs/Qma59jAyHVmbKpRsSx3fkXfJWh1eiLFnb5uyHERjE98Mty
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Innovative and in action! Wow!
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