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Several technical characteristics of BFE Tester

2021/02/25

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The goal of testing the bacterial filtration efficiency of masks is to test the irritation of disposable medical masks to human body, the filtration performance of bacteria and particles, and the cleanliness of sterile masks.

Among the relevant standards in China, only the medical industry standards YY 0469 Medical Surgery and YY 0969 Disposable Medical Mask have made provisions, which are their important characteristics compared with other standards.

The testing principle of the Bacterial Filtration Efficiency Tester is to install the mask sample on the headform frame by simulating the actual use state, and pass over the igniter with constant flame height along with the headform at a certain linear speed, observe the burning condition of the mask, and record the time of afterburning and smoldering, so as to assess whether the mask is qualified.

The box-type observation window is designed to cooperate with the safety operation port, which is convenient for operation and observation and testing process. The head die is made of metal material, which can resist high temperature, can automatically ignite, is convenient to use, and has long service life.

Bacterial Filtration Efficiency Tester

Several technical characteristics of Mask BFE Tester;

1. key+counting module control

Digital display counter, which can preset 1-9999S test time and automatically stop when the test is finished.

2. Anti-human head mold

The mask fixture is a metal human head mold, which can fully simulate the actual use state of the mask.

3. The equipment is highly automated

The instrument automatically records the burning time and flame retardant time, and displays them digitally. It is equipped with flame temperature measuring probe, flame temperature display, automatic ignition and adjustable flame height.

4. Negative pressure experiment system to ensure the safety of operators; Peristaltic pump is built in the negative pressure cabinet, A and B are Andersen;

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

6. Embedded high-speed industrial microcomputer control; 10.4-inch industrial-grade high-brightness color touch screen; USB interface, supporting u disk data transfer; The cabinet has built-in high-brightness lighting lamps;

7. Built-in leakage protection switch to protect the safety of operators; The inner layer of stainless steel in the cabinet body is integrally processed and formed, and the outer layer is sprayed with cold-rolled plates, and the inner and outer layers are insulated and flame retardant;

8. The front switch glass door is convenient for the experimenter to observe and operate; Removable bracket with adjustable height; Casters for supporting and moving.



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