In order to prevent cross-contamination of the clean room of the food plant due to re-entry and round-trip operation, personnel should be evacuated from the clean room in the specified order during and at the end of the operation.

1. Do not take off the clean work clothes before changing clothes. The shoes in the clean room should be taken off before entering the dressing room and placed in the prescribed place. Wash your hands before taking off your shoes, remove your hat after taking off your shoes, and place it in a designated place.

2, when taking off clean work clothes, do not touch the floor, table and other items, generally from the bottom to the top, hanging with a hanger in the prescribed place to take off the clean work clothes, if you need to enter the food factory clean room, still need to enter the food factory clean room order.

3. There is no need to take an air shower when leaving a clean room.

Do not wear clean work clothes to the bathroom (except for the clean bathroom, follow the instructions above for cleaning the room). In the biological clean room, especially in the biological safety laboratory, after surgery, the first protective clothing, such as laboratory dedicated underwear, and then wash your hands immediately, shower, wash your face, wash your hands before, not out of the lab or smoking, eating, toilet, personal items such as watches are not allowed to wear before wash your hands, even if use rubber gloves, wash your hands after surgery, Because there are holes, cracks or scratches in the nails of the gloves, which may leave traces of contamination.