Mask BFE tester Test principle:

Firstly, a special microbial aerosol generator is used to provide a certain concentration of microbial aerosol for the entire system, and then the microbe and the diluted air are mixed evenly through the mixing and dilution section of the instrument.Then use a stable filtration rate to send a single, moderately stable and stable microbial aerosol into the sampler, and finally the sampler samples the filter material upstream and downstream, and calculates the microbial concentration in the sampled air by calculation to obtain the converted filter material The filtration efficiency of bacteria.

Bacterial filtration efficiency index function:

Bacterial filtration efficiency is one of the important indicators for testing the protective effect of masks, and represents the efficiency of masks in blocking bacteria from passing through the filter material of the mask. The higher the bacterial filtration efficiency of the mask, the better the protective effect. The bacterial filtration efficiency of medical masks must be 95% to be qualified.

GESTER Mask Testing Machine recommendation:

Mask Bacterial Filtration Efficiency (BFE) Tester GT-RA02

Mask Bacterial Filtration Efficiency (BFE) Detector GT-RA02B