Common cleanroom grades and their requirements

Cleanroom，也叫Dust-Free Workshop、Dust-Free Room或Clean工作台，是一种对空气Cleanliness有较高要求的封闭空间。Cleanroom等级通常根据其空气Cleanliness水平来划分，常见的Cleanroom等级及其要求如下：

1. Class 100 cleanroom: The air cleanliness reaches the Class 100 level, which means the diameter per cubic foot of air is 0.5 μ m; The number of particles in m does not exceed a certain quantity. This type of clean room is commonly used in high-precision industries such as electronics, pharmaceuticals, and food processing. Reasonable indoor layout is required, with sufficient and evenly distributed air supply. The selection of decoration materials and equipment should be easy to clean, dust-proof, and anti-static.
2. Class 1000 cleanroom: The air cleanliness is at the Class 1000 level, with high requirements for suspended particles in the air. Commonly used in precision machinery, optical instrument manufacturing, and other fields. Its requirements include good sealing, appropriate temperature and humidity control, efficient air filtration system, etc.
3. Class 10000 cleanroom: The air cleanliness reaches the level of Class 10000, suitable for industries with high environmental requirements, such as biomedicine, precision instruments, etc. Require stable airflow organization, effective dust prevention measures, and reasonable air treatment processes.
4. 100000 level cleanroom: This level of cleanroom is commonly used for general precision machining, assembly, and other processes. The requirements are relatively low, but a certain level of cleanliness still needs to be maintained.

In addition, different cleanrooms may have other special requirements, such as negative pressure control, optimized airflow organization, electrostatic control, etc. These requirements aim to ensure that the cleanliness, temperature, humidity, and other parameters of the clean room air meet predetermined standards, thereby meeting the requirements of specific processes.

Overall, the higher the cleanroom level, the stricter the requirements for air cleanliness. When selecting and designing a cleanroom, it is necessary to determine the appropriate cleanroom level and corresponding requirements based on specific application scenarios and needs. At the same time, it is necessary to regularly inspect and maintain the clean room to ensure that its performance and effectiveness are always in the best condition.

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