How does Shenzhen Zhong Jian South Environment Co., Ltd. design and manage the dressing room of clean workshop?

(China Construction? Reasonable and effective management of the dressing room of GMP clean room can reduce the pollution source of clean room to a certain extent, so the following factors should be considered when changing clothes in medical clean room:

Setting of dressing room

Rooms for changing clothes at different stages, such as shoe changing area (undressing), clean clothes (wearing sterile clothes) and air lock (hand washing and disinfection), are separated, and the last air lock will isolate the air flow between the shoe changing area and the production area.

Dressing and grading

According to the latest GMP requirements, the static level of the post-dressing stage should be consistent with the cleanliness level of its corresponding clean area, while the post-dressing stage refers to wearing clean clothes and subsequent air locks, and the cleanliness level of these areas is consistent with the level of the production areas they serve, while the pre-dressing stage, as an auxiliary area for purifying and dressing, needs to be sent to the air filtered by the air filter of the purification equipment, which has certain air exchange times and pressure, but belongs to a non-grading area.

Pressure difference in dressing area

As a passage for people to enter and leave the dust-free production area, the pressure difference (airflow direction) basically flows from the upper level area to the lower level area, and the pressure difference between adjacent airlocks is 5 Pa, so that the pressure difference between clean areas and unclean areas will not be too high, as long as the pressure difference between different clean areas and between clean areas and unclean areas is controlled to be greater than 10 Pa. If the pressure difference is too large, the air leakage through the door will increase, and the strength of the building partition is required.

Pressure difference monitoring in locker room

Because the cleanliness level of the part after changing clothes (wearing clean clothes+air lock) is consistent with that of the production area, it is necessary to monitor the pressure difference between these two areas, so a pressure difference meter will be set between these two rooms and other areas. In addition, according to the requirement that the pressure difference between clean area and non-clean area must be greater than 10 Pa, the pressure difference between this area and the front of dressing should be greater than 10 Pa.

Is this answer from Shenzhen? Southern Zhong Jian? Environment co., ltd. finishing, welcome to advise?