Mask & Protective Clothing Tester

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Mask BFE Tester

Mask BFE Tester

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Bacterial & Viral Filtration Efficiency (BFE/VFE) Tester

Bacterial Filtration Efficiency Tester is to determine the bacterial filtration efficiency (BFE) of medical face mask materials by employing a ratio of the upstream bacterial challenge to downstream residual concentration of the tested medical face mask materials. The control console adopts microcomputer control system to coordinate and control the work of aerosol generation system, transmission system, negative pressure cabinet and sampling system, and display the working status in real time. The whole measurement work is completed automatically.

Mask Bacterial Filtration Efficiency Tester Standards:
YY 0469-2004 Technical requirements for surgical mask
BS EN 14683-2014 Medical face masks - Requirements and test methods
ASTM F2100-2019 Standard Specification for Performance of Materials Used in Medical Face Masks            
ASTM F2101 Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureus

Masks Bacterial Filtration Efficiency (BFE) Tester Parameter:

Cabinet negative pressureData can be downloaded via usb flash drive
Data storage capacityData can be downloaded via usb flash drive
mass flow controller0-20L/min,resolution:0.1 L/min
Peristaltic pump flow(0.01~3.0)mL/min
High efficiency air filter characteristicsThe filtration efficiency of particles above 0.3um is ≥99.99%
Median mass diameter of aerosol generatorThe average particle diameter was (3.0±0.3)μm,Geometric standard deviation≤1.5
Two-channel 6-stage Anderson sampler captures particle sizeⅠclass>7μm,class(4.7~7)μm,Ⅲ class(3.3~4.7)μm, class(2.1~3.3)μm,class(1.1~2.1)μm, class(0.6~1.1)μm
Fog chamber specifications(600×80×5)mm
Total number of positive quality control sampler particles(2200±500)cfu
Ventilation flow of negative pressure system800m³/min
Operation room dimension(740×940×440)mm
dimensionAbout 1200×650×2100mm
Instrument noise<65Db(A)
power consumption<1500W

Mask Bacterial Filtration Efficiency Tester
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