SJ-X100 Medical Face Mask Filter Tester BFE Testing Machine Face Masks bacterial filtration efficiency BFE tester is to determine the bacterial filtration efficiency (BFE) of medical face mask materials by ... Read More
BFE Tester SJ-X100 20G SJ-X100 Masks Filter This machine is applied to test the filtration efficiency of mask, can be used in metering calibration department, scientific research institution, mask manufacturer ... Read More