China has built the World’s biggest air purifier and it is running in Xian in Shaanxi province

The 100-meter (328 feet) tall tower is a valuable tool in the country’s fight against urban air pollution.

The tower has produced more than 353 cubic feet of clean air a day and that air quality for nearly 4 square miles around the tower has noticeably improved.

Greenhouses covering the size of half a soccer field surround the base of the tower, into which polluted air is pulled. The smog is heated in the greenhouse by solar energy, and then rises through the tower, passing through several layers of cleaning filters.

The average reduction in PM2.5, the most harmful particles in smog, was 15% during times of heavy pollution. While there have been other similar smog-removing towers, many of which were powered by coal-fueled electricity, the Xian tower is unique in its very limited electricity needs.

The innovative, 60-meter-high tower was the brainchild of experts from the Institute of Earth Environment who designed and developed their creation with the Chinese Academy of Sciences.

The full-size version could reach as high as 500 meters (1,640 feet) while the surrounding greenhouses could cover nearly 30 square kilometers (11.6 square miles).

While locals have marveled at the tower’s size, it is in fact a miniature version of smog-removing towers that Cao and his team hope to install throughout China’s dense, massive cities. The full-size version could reach as high as 500 meters (1,640 feet) while the surrounding greenhouses could cover nearly 30 square kilometers (11.6 square miles).

Despite the lower level of solar energy available during the winter, a special coating on the tower’s greenhouses allows it to absorb what is available more efficiently and continue to pull smog all year long.

This is an interesting solution to handle urban air pollution!