According to the "People's Republic of China *** and the State Air Pollution Prevention and Control Law" Article 81, emission of fumes of food service operators should be installed fumes purification facilities and maintain normal use, or to take other fumes purification measures, so that fumes up to the standard discharge, and to prevent pollution of the normal living environment of nearby residents. So open restaurant through the public **** exhaust pipe can not discharge smoke.

"The Chinese People's **** and State Air Pollution Prevention and Control Law" is for the protection and improvement of the environment, prevention and control of air pollution, to protect public health, to promote the construction of ecological civilization, and to promote sustainable economic and social development, the development of the law.