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Nowadays, there is less and less pollution-free places,the harm to human body is ubiquitous, the main block of this design is to defend Urban light pollution , harmful radiation, glare, industrial gas, vehicle exhaust, exhaust gas directly infringes on human life. In order to provide convenient protection for people in special working environment, the design is convenient to carry and easy to use.
Dalian Minzu University
Dalian Nationalities University