The design, construction of medical clean workshop, the manufacturing and installation of equipment and facilities in the workshop, the quality of raw and auxiliary materials for production, packaging materials, and the unfavorable execution of the control procedure of human and physical clean facilities will affect the quality of products. The reason for affecting product quality in construction is that there are problems in the process control link, and the following hidden dangers are left in the process of purification installation and construction:

The inner wall of the air duct of the purifying air conditioning system is not clean, the connection is not tight, and the air leakage rate is too large; The color steel plate enclosure structure is not tight, the sealing measures of clean room and technical sandwich (ceiling) are improper, and the sealing door is not closed; Decorative profiles and process pipelines form dead corners and dust in the clean room; Individual locations are not constructed according to the design requirements, unable to meet the relevant requirements; The sealant used is of poor quality, easy to fall off and deteriorate; The return and exhaust wind color steel plate are connected in the channel, and the dust from the exhaust air to the return air duct; The inner wall weld of stainless steel sanitary pipe, such as purified water and injection water, is not formed when welding; Air duct check valve operation failure, air backfilling caused pollution; Drainage system installation quality is not up to standard, pipe rack, accessories easy to collect dust; Clean room differential pressure setting is unqualified and fails to meet production process requirements.