Yes friends, 328 feet tall anti smog tower built in Xi’an, China is the world’s largest air purifier which produces about 10 million cubic meters of fresh air every day. This air purifier is 10 sq km. Effective in removing smog in the area. It works without electricity during the day, it is used through green houses,The polluted air is collected in the glass house built in the air purifier and this air is heated with the help of solar energy, later the hot air rises up in the tower and passes through the air purifier filters.
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