China built a tower that acts like 'the world's biggest air purifier,' and it actually works

Stephen Chen, South China Morning Post
December 20, 2018 4:51 PM


Researchers hope to build even larger smog towers in the future to remedy China's pollution problem.
VCG/VCG via Getty Images

• Scientists say an experimental tower in northern China, dubbed the world's biggest air purifier, appears to be working.

• Researchers at the Institute of Earth Environment at the Chinese Academy of Sciences say they have seen improvements in the air quality over an area of more than three square miles in the past few months.

• The tower works through greenhouse coverings. Polluted air is sucked in, heated up by solar energy, and then circulated through multiple layers of cleaning filters.

• A number of locals say they have noticed a difference in the air quality, even during the winter when the city is especially prone to pollution.

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