China builds the largest air purifier in the world (over 328 feet high) in Xian, northern China in order to reduce smog levels in the city.
There are currently plans in place to produce more smog-sucking towers around the world.
According to the head of the research, the tower has managed to produce more than 353 million cubic feet of clean air a day since its launch and the results are quite encouraging.
The prototype tower is designed to catch deadly pollutants from the air such as Particulate Matter (PM2. 5, PM10). The PM2.5 are inhalable particles, with diameters that are smaller than 2.5 micrometers and can cause serious health issues such as asthma and heart disease.
A professor of mechanical engineering at the University of Minnesota, Dr. David Pui (one of the researchers) said “I like to tell my students that we don’t need to be medical doctors to save lives, If we can just the air pollution in major metropolitan areas by 20 percent, for example, we can save tens of thousands of lives each year”.