Knowledge analysis of laminar flow cabinet and its main differences from biosafety cabinets

The clean bench is designed to meet the cleanliness requirements of local work areas in modern industries, optoelectronics, biopharmaceuticals, and scientific research experiments.
Attention: Clean bench is different from Biosafety Cabinet.
The ultra clean workbench can only protect the reagents and other substances operated inside the workbench from contamination, and does not protect the staff; And the biosafety cabinet is a negative pressure system that can effectively protect workers.
The working principle of the ultra clean workbench is to suck air into the pre filter through a fan, enter the high-efficiency filter through a static pressure box for filtration, and send the filtered air out in a vertical or horizontal airflow state, making the operating area reach a hundred level cleanliness and ensuring the production meets the requirements of environmental cleanliness.
The ultra clean workbench is divided into vertical flow clean bench and horizontal flow clean bench according to the direction of airflow.
The ultra clean workbench can be divided into two forms based on its operating structure: single-sided operation and double-sided operation. According to its purpose, it can also be divided into ordinary ultra clean workbench and biological (pharmaceutical) ultra clean workbench.
The ultra clean workbench is a purification workbench used in the fields of medical and health, pharmaceuticals, chemical experiments, etc., and provides a sterile and dust-free clean environment.
When it comes to ultra clean workbenches, some people may ask if they are the same as biosafety cabinets.
In fact, the outstanding feature of the ultra clean workbench is its sterile, dust-free and clean environment, which can protect the reagents and other substances operated inside the workbench from contamination.
The biosafety cabinet is designed to protect the operator, laboratory environment, and experimental materials from potential infectious aerosols and splashes that may occur during the operation of primary cultures, bacterial strains, diagnostic specimens, and other infectious experimental materials. It emphasizes safety and effectively protects personnel.
The main differences between ultra clean workbenches and biosafety cabinets are as follows:
1. A biosafety cabinet is a safety equipment widely used in scientific research, teaching, clinical testing, and production in the fields of microbiology, biomedicine, genetic recombination, animal experiments, and biological products. It is also the most basic safety protection equipment in the first level protective barrier of laboratory biosafety.
2. The ultra clean workbench is designed to protect experimental materials by drawing air into a pre filter through a fan, filtering it through a high efficiency filter through a static pressure box, and sending the filtered air out in a vertical or horizontal airflow state, achieving a hundred level cleanliness in the operating area and ensuring the environmental cleanliness requirements of production. Only protect the sample, not the operator. 
3. A biosafety cabinet is a negative pressure purification workbench. Proper operation of the biosafety cabinet can protect personnel, test samples, and prevent cross contamination; The ultra clean workbench is only a clean workbench that protects the operating objects but not the staff and laboratory environment.

4. In terms of cleanliness level, biosafety cabinets are also more advanced than ultra clean workbenches.