Legal analysis: "food service unit employees health management norms" regulates the food service unit employees before going on duty, in the post during the personnel health, as well as personnel hygiene requirements, clear employees need to wear masks, hand washing or disinfection of the situation, is conducive to food service units to provide technical support for the management of food safety, to strengthen the catering health management of employees to provide a strong guarantee of consumer dietary safety. Consumer dietary safety to provide strong protection.

Legal basis: the State Administration of Market Supervision issued the "Code of Practice for the Health Management of Catering Service Workers" 14.3.2.3 Specialized operating areas for other processing and production of employees, it is appropriate to wear clean masks. 14.3.2.4 Other employees in contact with the direct entry of food, it is appropriate to wear clean masks.