The tower that eats up smog and spits out clean air - CCTV News. In Beijing's 751 arts district, Daan Roosegaarde has unveiled his newly designed Smog Free Tower comprised of 45 silver plates. This gives you a reason to go and enjoy life and artworks outdoors even on polluted days. A tower that takes in smog and releases clean air has been unveiled in Beijing. The tower's Dutch designer hopes to tackle the city's air pollution issue with his innovative metal structure.
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