Local authorities in Bangkok have installed a giant air purifier in front of a shopping mall in the city centre 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 metres.

The device will operate over a 3-month trial period, and was developed by Thailand’s Kasetsart University and the air-con company Mastercool Inc.

https://www.youtube.com/watch?v=Si2vy_qX4pU

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