5,111 yuan to 51,111 yuan. According to the query law, it can be known that Article 118 of the Law of the People's Republic of China on the Prevention and Control of Air Pollution, catering service operators who discharge oil fume have not installed oil fume purification facilities, used oil fume purification facilities abnormally or failed to take other oil fume purification measures, and if they discharge oil fume beyond the emission standard, the supervision and management department determined by the local people's government at or above the county level shall order them to make corrections and impose a fine of more than 5,111 yuan and less than 51,111 yuan; Refuses to correct, shall be ordered to suspend business for rectification.