Giant air purifier installed in central Bangkok to improve air quality

BANGKOK, Thailand — Local authorities in Bangkok have installed a giant air purifier in front of a shopping mall in the city center in a bid to improve air quality.

The 4-meter tall air tower is said to be able to process some 17,000 cubic meters of air per hour over a range of 1,000 square meters.

The device will operate over a three-month trial period, and was developed by Thailand's Kasetsart University and the air-con company Mastercool Inc.