BFE (Bacteria Filtration Efficiency Tester) refers to the effectiveness of mask material in blocking bacteria produced by the wearer. In the BFE test conducted by the laboratory according to the relevant product standards, it is usually required that at least 95% of BFE should be achieved. It is mainly used for medical surgical masks and single-use medical masks. Bacteria filtration efficiency" in mask testing is an important indicator of the protective effect of masks, and many testing standards have clear provisions to ensure the protective effect of mask products.

Bacterial Filtration Efficiency Tester scope of application：

BFE is used to test the percentage of mask materials that filter out suspended particles containing bacteria at a specified flow rate. The dual gas path simultaneous comparative sampling method is adopted to improve the accuracy of sampling, and is suitable for the performance test of the bacterial filtration efficiency of medical surgical masks by metrology and verification departments, scientific research institutes, medical mask manufacturers and other related departments.

main feature: 

1. Negative pressure experiment system to ensure the safety of operators;

2. Negative pressure cabinet with built-in peristaltic pump, integrated six-stage Andersen;

3. The flow rate of the peristaltic pump can be set;

4. The spray flow rate of the special microbial aerosol generator can be set, and the atomization effect is good;

5. Embedded high-speed industrial microcomputer control;

6. 10.4-inch industrial-grade high-brightness color touch screen;

7. USB interface, support U disk data transfer;

8. The cabinet has built-in high-brightness lighting;

9. Built-in leakage protection switch to protect the safety of operators;

10. Insulation and flame retardant between inner and outer layers;

11. The front switch glass door is convenient for experimenters to observe and operate.

Structure Description

The BFE cabinet has a built-in high-brightness lighting; a built-in leakage protection switch to protect the safety of operators; the inner layer of the cabinet is integrally processed and formed, and the outer layer is sprayed with cold-rolled plates, and the inner and outer layers are heat-insulated and flame-retardant; the front-opening glass door , It is convenient for the experimenter to observe the operation; Detachable bracket, the height of the bracket is adjustable.