Laboratory class 7 clean room - anti-static, mesh soft curtain, iron square, AC fan
Cleanroom Cleanliness Levels Overview
Cleanroom cleanliness level standards focus on the number of particles and microorganisms in the air, and these standards are strictly controlled and managed to ensure product quality and production efficiency in the cleanroom environment. The clean room level is usually divided according to the number of dust particles with a diameter greater than 0.1μm per cubic meter of air, and the higher the level, the higher the cleanliness.
Clean Room Cleanliness Classification
International Standard ISO 14644-1
The ISO 14644-1 standard categorizes cleanliness levels into nine classes from ISO 1 to ISO 9. For example, the number of particles larger than 0.1μm in diameter per cubic meter of air in an ISO 1 clean room is no more than 10, while ISO 9 allows up to 35,200,000 particles.
Chinese National Standard GB 50073-2013
China's cleanliness level standard GB 50073-2013 categorizes cleanliness levels from Class 1 to Class 9, similar to ISO 14644-1, but with different values. For example, a Class I clean room in GB 50073-2013 allows no more than 10 particles with a diameter greater than 0.1 μm per cubic meter of air.
Cleanliness level table
Airflow Organization
The airflow organization inside the clean room is crucial, which determines whether the clean room can effectively remove dust particles and maintain a certain degree of cleanliness. For class 10-100 clean room, the key lies in the formation of unidirectional vertical airflow, i.e., the indoor clean airflow is like a piston, with a uniform flow direction and speed, the dust particles will be quickly taken away. This is usually achieved by arranging high-efficiency filters on the ceiling and having fans (FFUs) push the air flow from top to bottom.
For 1K-100K class clean shed, the airflow organization is through the uneven velocity of the non-parallel flow, accompanied by reflux and eddy current, constantly dilute the indoor air, gradually exclude the contamination, in order to achieve the clean effect. This design enables the clean room to provide different levels of airflow at different points in time, thus adjusting the cleanliness level.
Filtration Technology
Filtration technology is the core of the clean room, it directly affects the effect of air purification. Clean rooms are usually equipped with primary, intermediate and high efficiency filters (HEPA or ULPA), which are sequentially arranged to intercept dust particles of different sizes. HEPA filters, in particular, are able to capture and remove most of the smallest particles, ensuring the cleanliness of the air.
Material Selection
The structural materials of the clean room need to take into account factors such as dustproof, anti-static and corrosion resistance. Common materials include industrial aluminum, stainless steel squares, iron squares sprayed with plastic, etc. These materials are not only strong and stable, but also will not rust or generate dust. In addition, anti-static drapes or toughened glass are often used around the perimeter of clean booths to provide good transparency and dust-proof performance.
Application Scenarios
Widely used in healthcare, electronics manufacturing, bio-engineering and other industries, clean booths are especially suitable for those production facilities and processes that require localized high cleanliness protection. Its flexibility and convenience make it an indispensable part of modern production.
- Product_vod
- Factory_vod
- Workshop
- Package
- Certificate