yes. According to official website of Xi 'an Engineering Management Service Center, in daily life, Xi 'an Engineering Management Service Center will regularly clean the oil fume of some large catering enterprises, conduct oil fume detection once a year, and timely rectify the parts that do not meet the standards. The detection and cleaning of lampblack machine depends on the scale of catering. Large restaurants or catering institutions should do a lampblack detection within half a year.