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- China built the 'World's biggest air purifier' - and it's actually working Thu, 18 Jan 18, 1:25amWhat has been called the world's largest air purifier by its operators is now up and running in the Chinese city of Xian in Shaanxi province. The 100-meter (328 feet) tall tower has already improved the local air quality,...
- 'World's biggest air purifier' operating in China Thu, 18 Jan 18, 1:25amWhat has been called the world's largest air purifier by its operators is now up and running in the Chinese city of Xian in Shaanxi province. The 100-meter (328 feet) tall tower has already improved the local air quality,...