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There are many poor countries in the world due to lack of water. Especially in Africa, the serious shortage of water resources has reduced the living standard of the people. However, the rainfall in Africa is also very small in a year. Therefore, "Rainwater filter" has solved this problem to a certain extent. It will be installed on the ground, with a huge rainwater collection opening at the top, a multi-layer activated carbon filter inside, and multiple taps at the bottom to control the water source. In this way, people can refer to the filtered rainwater, which not only ensures health but also solves some of the poor.
Shaoyang city, China