View of the filter screen of a 60-meter-tall air purification tower, the world's biggest air purifier, to combat smog and other air pollution in Xi'an Stock Photo - Alamy

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View of the filter screen of a 60-meter-tall air purification tower, the world's biggest air purifier, to combat smog and other air pollution in Xi'an

AIR PURIFIER IN XI'AN, CHINA - Antarctica Journal

China built a tower that acts like 'the world's biggest air

This skyscraper-sized air purifier is the world's tallest

View Meter Tall Air Purification Tower World's Biggest Air

China tests giant air cleaner to combat smog

AIR PURIFIER IN XI'AN, CHINA - Antarctica Journal

AIR PURIFIER IN XI'AN, CHINA - Antarctica Journal

This Tower Purifies a Million Cubic Feet of Air an Hour

This skyscraper-sized air purifier is the world's tallest

Watch: World's biggest air purifier on trial run in Xi'an