1、 The two functions are different:

1. The function of the clean workbench: the air is sucked into the prefilter by the fan, filtered by the high efficiency filter through the static pressure box, and the filtered air is sent out in the state of vertical or horizontal airflow, so that the operating area can reach the 100 level cleanliness and ensure the production requirements for environmental cleanliness.

2. The function of biological safety cabinet: it is a box type air purification negative pressure safety device to prevent the aerosol escape of some dangerous or unknown biological particles in the process of experimental operation.

2、 The two categories are different:

1. Classification of clean workbenches: mainly divided into two categories, one is horizontal laminar flow, the other is vertical laminar flow. According to the operation structure, it can be divided into unilateral operation and bilateral operation. It can also be divided into ordinary clean workbench and biological clean workbench according to its use.

2. Classification of biosafety cabinets: According to NSF49 standard, media with biosafety grade 1 (P1) refer to ordinary harmless bacteria, viruses and other microorganisms; The medium with biosafety level 2 (P2) refers to general pathogenic bacteria, viruses and other microorganisms; The medium with biosafety level 3 (P3) refers to the microorganisms such as severe/fatal bacteria and viruses, which can be cured after infection;

The media with a biosafety level of 4 (P4) refer to microorganisms such as virulent/fatal bacteria and viruses, which are difficult to cure after infection. This standard divides biosafety cabinets into Class I, II and III, which can be applied to the operation of media with different biosafety levels.

3、 The two have different uses:

1. Purpose of the clean workbench: The clean workbench is a one-way flow type air purification equipment that provides a local dust-free and sterile working environment. It is applicable to the scientific research and production departments that need local clean and sterile working environment, such as medicine and health, biopharmaceuticals, food, medical science experiments, optics, electronics, aseptic room experiments, aseptic microbial testing, plant tissue culture and inoculation.

It can also be connected into an assembly line with low noise and mobility. Its application has good effects on improving process conditions, improving product quality and increasing yield.

2. Use of biosafety cabinet: It is widely used in scientific research, teaching, clinical testing and production in the fields of microbiology, biomedicine, genetic engineering, biological products, etc. It is the basic safety protection equipment in the protective barrier of laboratory biosafety