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Xian smog tower
January 18 , 2018
2501 days
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- China has built the world’s largest air purifier in a bid to fight the country’s smog problem.
- The 100m (328ft) tower in the city of Xian in central China’s Shaanxi province can filter 353 million cubic feet (10 million cubic metres) of air per day.
- The Xian tower uses several greenhouses located near its base to suck in the polluted air and heat it using solar power. The hot air is then sent through the tower, where it passes through multiple air cleaning filters before exiting.
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