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The meaning of masks such as BFE99

Categories:Industry Information
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Time of issue:2023-01-05
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(Summary description)BFE (Bacterial Filtration Efficiency) refers to the barrier effect of mask materials on bacteria produced by the wearer. It is mainly used for medical surgical masks and disposable medical masks. Such products may be marked with BFE on the packaging, such as BFE99.

The meaning of masks such as BFE99

Categories:Industry Information
Author:
Origin:
Time of issue:2023-01-05
Views:

Information

BFE (Bacterial Filtration Efficiency) refers to the barrier effect of mask materials on bacteria produced by the wearer. It is mainly used for medical surgical masks and disposable medical masks. Such products may be marked with BFE on the packaging, such as BFE99.

BFE99 from China manufacturer In the BFE test conducted by the laboratory according to the relevant product standards, it is necessary to use the bacterial culture solution to generate a large droplet spray to simulate human droplets, and spray it to the mask material at an airflow rate of 28.3 liters per minute, and then test the mask material. The interception effect usually requires at least 95% of BFE, and the effect of BFE99 will be better.
Based on the functions and applications of BFE99, we can see that this type of mask does not require a close fit with the face to achieve the purpose of protecting the surrounding environment and others. Historically, gauze masks were invented for doctors to protect patients during surgery, and have been successfully used in hospitals for hundreds of years.
Through the above introduction and analysis of the meaning of masks such as BFE99, hope it helps you.

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The features of BFE 99 masks

BFE in BFE 99 masks means bacterial filtration effect, which refers to the material's resistance to bacterial penetration. The reported results of BFE 99 masks are shown in percentage data, corresponding to the ability of the material to resist bacterial penetration. The higher the value, the better its filtration performance.

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Interpretation of the adsorption capacity of BFE 99

BFE99 is enough for people's daily protection. From the perspective of the filtration principle, the filtration efficiency of BFE99 masks for virus-sized particles is not bad.

2023-01-19

Analysis of the necessity of using BFE99

Referring to the medical-surgical masks we often talk about recently, if we refer to the BFE standard, the medical-surgical masks are BFE99 plus VFE30. If you can't filter the virus, it's useless, so isn't the medical-surgical mask completely useless?

2023-01-12