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What is the difference between disinfection and sterilization in biological clean room?

2021-01-11 17:00
Disinfection and sterilization are two different concepts. The disinfection and sterilization methods commonly used in biological clean rooms were compared, and three commonly used methods such as ultraviolet sterilization, formaldehyde disinfection and ozone disinfection were expounded.

According to the data, every 6~7cm2 skin of human body can carry 1~10000 bacteria, of which about 1% is pathogenic, and human breath and speech can also emit bacteria.

Obviously, it is very important to prevent bacteria from producing, removing and eliminating the existence of bacteria for clean factories, especially for biological clean rooms with relatively high clean requirements.

Disinfection and sterilization are two effective methods to remove and destroy bacteria and ensure microbial requirements in biological clean rooms.

2. disinfection and sterilization are two different concepts

Disinfection and sterilization are two different concepts.

Sterilization means killing or removing all microorganisms (including bacteria, viruses, etc.) in substances, which has absolute significance. That is to say, corresponding to sterilization is not sterilized, and there is no intermediate state of more or less sterilization. In this respect, absolute sterilization is almost nonexistent because it is difficult to achieve or can be achieved for an infinite time.

Disinfection is a treatment method that kills most pathogenic microorganisms or reduces them to a certain extent. In this process, some bacteria or viruses are not destroyed due to their resistance to heat or medicine, which is of relative significance. That is to say, the disinfectant itself has a certain sterilization range.

It is not difficult to see that the understanding of the relative and absolute meaning of disinfection and sterilization here is different from our usual understanding. What we usually call "sterilization" should be called "sterilization" accurately.

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