1, dust particles capacity is not the same.
The dust particles of 0.5 micron in class 1,000 clean room are less than 9 million, and the dust particles of 0.5 micron in class 100 clean room are less than 1 million.
The dust particles of 5 microns in the class 1,000 clean room are less than 50,000, and the dust particles of 5 microns in the class 100 clean room are less than 0,000,000 (not allowed).
2, the workshop uses different
100 level clean room can be used in the pharmaceutical industry, such as aseptic manufacturing process, a large number of applications in the plant such as in vivo items of manufacturing, surgical procedures, including transplantation surgery, integrator manufacturing. Thousands of clean room is mainly used for the production of high-quality optical products, but also used for testing, assembly of aircraft snake screwdriver, assembly of high-quality miniature bearings and so on.
3, different sterility
Hundred clean room is not a sterile room, thousand clean room on the "sterile" or "dust-free" environment to be strict.
Extended information
Clean room class 1,000 and 100 do not need to do GMP certification of cleanliness level. If you need to do GMP certification of the industry can be roughly divided into A, B, C, D! The following table:
For the clean room in the division of the time is mainly based on the air in the workshop is divided, because in the air will contain a wide variety of particles and dust, the division of the standard is the number of dust particles in the diameter of each cubic meter of air is greater than 0.5 microns, in accordance with a different number of divided into different Class, according to the relevant norms, clean room commonly used for the clean level of 100, 000, 10,000, 100,000 level.
Baidu Encyclopedia - Clean Room
Baidu Encyclopedia - Class 1,000 Clean Room