In a bid to curb air pollution in the city, the Delhi government on Friday started the trial of "anti-pollution towers", an official said.
The anti-pollution towers absorb particulate matter in the air and release clean air back into the atmosphere.
"Delhi government has initiated the testing of anti-pollution towers at Indraprastha Marg Flyover, ITO, on pilot basis for demonstrating its effectiveness in reduction of PM 2.5, PM 10 and other suspended particulate matter in the air," a statement said.
http://www.business-standard.com/article/news-ians/government-begins-trial-of-anti-pollution-towers-in-delhi-118021601086_1.html