In homes of many allergies, there are air purifiers which, thanks to special filters, remove all bacteria and allergens from them, significantly improving its quality. Hong Kong has decided to use such devices on a much larger scale and reduce the amount of urban air pollutants.
It can not be denied that rapidly developing China has a growing problem with air pollution, which is particularly acute in the largest cities, killing thousands of people every year. Natural ways to clean it do not pass the test, because trees in fast-growing metropolitan areas are rare, so it was decided to use technology for this purpose. Hong Kong is currently testing equipment developed under a new project named City Air Purification System, developed by Sino Green and ARUP.
Its goal is to build industrial air purifiers to reduce pollution by as much as 40 percent. As you can see in the picture below, the device resembles the size of a bus stop. Equipped with a special set of filters, it would purify the air from any impurities, so people standing near it could inhale it.
The 2 x 3 meter version is currently being tested, which is located on one of the busiest streets in Hong Kong. The cost of building such a device is about 77 thousand dollars, but the health of citizens. Meanwhile, the costs of the subsequent treatment of diseases caused by air pollution are much higher.