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Laboratory Class 7 Clean Shed - Non ESD, Mesh Soft Curtain, Stainless Steel, AC Fans
Class 5 Clean Room
The class 5 clean room represents the highest level of clean environment, applicable to the production environment with extremely strict requirements for cleanliness, such as semiconductor, microelectronics, optics and other precision manufacturing industries. In this level of clean room, the number of particles greater than or equal to 0.5 microns per cubic meter of air shall not exceed 3520, and for smaller particles, such as 0.1 microns, shall not exceed 1. Class 5 clean rooms usually use high efficiency air filtration systems and strict airflow control to ensure the cleanliness of the air.
Class 6 Clean Room
Thousands of clean shed cleanliness is slightly lower than the hundred level, but still applies to the cleanliness of the production environment has certain requirements, such as certain biotechnology, chemical production, and so on. Thousand clean shed per cubic meter of air greater than or equal to 0.5 micron particles shall not exceed 35,200, and for 0.1 micron particles, shall not exceed 10. Class 6 clean room also requires the use of high-efficiency air filtration systems, but compared to class 100 clean room, its requirements for airflow control may not be as strict.
Class 7 Clean Room
The cleanliness of the 7-level clean room is further reduced and is suitable for production environments that do not require particularly high cleanliness, such as general food processing and medical device assembly. In this level of clean room, the number of particles greater than or equal to 0.5 microns per cubic meter of air shall not exceed 352,000, and for 0.1 micron particles, shall not exceed 100. Class 7 clean rooms usually use more common filtration equipment and ventilation systems to maintain the basic cleanliness requirements.
Cleanliness level table
Air Filtration
The air filtration system of a clean room is its most basic function. By installing high efficiency filters (HEPA) or ultra high efficiency filters (ULPA), tiny particles in the air, such as dust, smoke and bacteria, can be effectively intercepted and captured, thus guaranteeing the cleanliness of the air. These filters are usually installed in the air supply system of the clean room, such as FFU (Fan Filter Unit), which are responsible for sending the filtered fresh air evenly into the clean room to form a stable positive pressure environment.
Positive Pressure Control
Positive pressure control is another key function of the clean room, which regulates the amount of air supply and return air to maintain a positive pressure difference between the room and the external environment, preventing the entry of pollutants from the outside. Positive pressure control involves not only the precise adjustment of the air supply volume, but also the management of the return air system and the exhaust system to ensure that the air flow is orderly and controllable.
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