● articles cleansing, disinfection, inspection, packing, sterilization, storage, issuance of work completed on the supply room;
● experienced professionals operating norms to ensure better control and more reliable results;
● centralized resource allocation, management, reduce the manpower and material consumption.
Correct design specifications to ensure the safety of the system to avoid cross-infection

● Process layout from "pollution" to "net" of the assembly-line approach;
● contaminated areas, clean areas, sterile areas and living areas of the strict division;
● reliable three barriers:
   1, between the contaminated area and clean area - double-Fei and transmission automatic sterilizer window;
   2, clean area with the sterile zone between the - two-pulse vacuum sterilizer steam;
   3, between aseptic areas and between paid - two-door interlocking transfer window;
● pressure: pollution <Negative> - clean area <micro-pressure or atmospheric pressure> - sterile area <Pressure>
● four separate: separate from the workplace and between life and pollute the separate items and cleaning items, check the packing and dressing packaged separately to check equipment, goods and non-sterile items separately after sterilization.