中华人民共和国大气污染防治法 (2018修订)第八十一条第1款

排放油烟的餐饮服务业经营者应当安装油烟净化设施并保持正常使用，或者采取其他油烟净化措施，使油烟达标排放，并防止对附近居民的正常生活环境造成污染。

Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution (2018 Amendment), Clause 1 of Article 81

The canteen business service unit with cooking oil discharging shall install cooking oil filtering facility and ensure the facility is functional all the time or take other cooking oil filtering measures to ensure that the discharged cooking oil comply with standard and prevent the pollution for the living environment of the neighborhood