1
Identification
Biosafety cabinet (BSC)
The operation cabinet with airflow control and high-efficiency air filtration device can effectively reduce the harm to the operator and the environment caused by pathogenic microorganisms or harmful aerosols generated during biological experiments.
According to the object and degree of protection, the biosafety cabinet is divided into three levels:
Class I biosafety cabinets only protect personnel and the environment and do not protect items;
Class II safety cabinets not only protect personnel and the environment, but also protect objects on the work surface from contamination;
Class III safety cabinets are enclosed and personnel are operated through the cabinets to provide maximum protection for personnel.
2
working principle
Special airflow design keeps the cabinet opening and the operating table surface under negative pressure (personal protection)
The indoor air passes through a high efficiency filter (HEPA filter) to create a clean vertical downward flow to form a clean working area (sample protection)
The air in the cabinet is discharged to the atmosphere through another high-efficiency filter (environmental protection)
The ultimate goal of the use of safety cabinets is to provide adequate protection and quality for personnel, the environment and samples.
Graphic introduction to the use of safety cabinets
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