Today more and more industries use the clean operation bench, including manufacturing, research, bioscience, and food processing. Since many medical preparations should be on the clean operation bench, you can see them everywhere in hospitals, clinics, and medical facilities. Youthtech is a professional cleanroom supply manufacturer in China since 2005. In this post, we will share with you something about the clean bench.

Clean Operation Bench

 What is the clean bench?

It is also called a clean operation bench or laminar flow bench. It is a laminar flow work cabinet that provides filtered air across the bench surface to avoid contamination. The invention of the clean operation bench is to supplement cleanroom technology that can protect the sample on the work surface. It is perfect for work with non-hazardous materials where clean, particle-free air is necessary to avoid contamination. It ensures that the work surface flood with the filtered air in a laminar flow constantly.

Why is laminar flow?

There is a vertical or horizontal laminar flow with it. Both configurations provide unidirectional speed along parallel streamlines. In short, all the air in the workbench area flows in a single direction without backwash, which is usually the turbulent airflow area generated by obstacles, equipment, or movement in the ultra-clean workbench enclosure. Appropriate housing design helps prevent backwash and ensures that vertical or horizontal laminar airflow continues to protect the surface of the ultra-clean workbench.

laminar flow hood

Differences with biological safety cabinet

Many people do not know the difference between a clean operation bench and biological safety cabinet, and many misconceptions exist. , the clean operation bench protects the work surface, but the physical safety cabinet can protect the operator, the sample, and the surrounding environment. If you need to use the chemically hazardous or infectious material in the laminar flow hood, at this time, you need a biological safety cabinet.

Some basic knowledge about biological safety cabinets

Different from laminar flow hood

The laminar flow hood is one of the equipment that can shield and isolate the operator from the product, and its main purpose is to avoid product contamination. The air sucked from the cleanroom is then passed through the functional area vertically through the HEPA filter by the fan installed in the top pressurized cabin, providing ISO 5 (level 100) unidirectional airflow for critical areas. The exhaust gas is discharged from below and returns to the cleanroom area. It is mainly composed of a cabinet, fan, high-efficiency air filter, damping layer, lamps, etc.

The laminar flow hood is suitable for remove corrosive chemical gases and toxic fumes during chemical experiments. Since there is no HEPA filter, the laminar flow hood cannot effectively remove microbial media. The microbial samples placed in the laminar flow hood will spread into the water tank and contaminate the laboratory environment.

In Youthtech, our products including all types of cleanrooms, cleanroom air filters, purification equipment, cleanroom furniture, clean room panels, and clean bench for sale at the same time.

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