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People & Culture

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

Stephen Chen

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Published: 6:45am, 16 Jan, 2018

Updated: 11:19pm, 16 Jan, 2018

 

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

An experimental tower over 100 metres (328 feet) high in northern China – dubbed the world’s biggest air purifier by its operators – has brought a noticeable improvement in air quality, according to the scientist leading the project, as authorities seek ways to tackle the nation’s chronic smog problem.

The tower has been built in Xian in Shaanxi province and is undergoing testing by researchers at the Institute of Earth Environment at the Chinese Academy of Sciences.