Biosafety cabinets can be divided into three categories: I, II and III. Different types of biosafety cabinets can provide different levels of protection, which can mainly be used to prevent danger or infectious pollution. Today, we will briefly understand the three categories of biosafety cabinets:

　　1. Class I biological safety cabinet

　　Class I biosafety cabinet is mainly used to protect laboratory personnel and the environment. The protection of samples is not sufficient, mainly because the negative pressure device is used to suck external air into the working area.

　　2. Class II biological safety cabinet

　　This level of safety cabinet is common in Zui, and A2 type safety cabinet is also widely used in Zui. In addition to A2, there are four types of safety cabinets, A1, B1, and B2, all of which have the function of protecting samples. This is because the air supply needs to be filtered by HEPA filter before passing through the working space.

　　3. Class III biological safety cabinet

　　This is a high level of the current Zui biosafety cabinet, which can provide a great degree of protection for the work of the biosafety level 4 closed laboratory.

　　The above is a description of different levels of biosafety cabinets. I hope it will be helpful to you. If you want to know more about it, you can visit the official website of Haisiyuan www.hsy515.cn!

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