A Billboard That Purifies Air! These Manipal Students Have Devised an Awesome Innovation!InnovationBy Lekshmi Priya S23 Oct 2017 19:38 ISTConceived by Dhruv Suri, an aeronautical engineering student, GreenBoard incorporates an air purifier, also known as carbon dioxide scrubber, into an ordinary billboard and purifies the air as it flows through it.Read More
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