The tower pictured while under construction in Xian. Photo: Handout

China builds ‘world’s biggest air purifier’ (and it seems to be working)

A 100-metre high air purification tower in Xian in Shaanxi province has helped reduce smog levels in the city, preliminary results suggest

Topic |   China science

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The tower pictured while under construction in Xian. Photo: Handout
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Stephen Chen

Stephen Chen

Stephen Chen investigates major research projects in China, a new power house of scientific and technological innovation. He has worked for the Post since 2006. He is an alumnus of Shantou University, the Hong Kong University of Science and Technology, and the Semester at Sea programme which he attended with a full scholarship from the Seawise Foundation.