Medical Masks bacterial filtration efficiency tester also called BFE test machine 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.
Product Application：
This machine is suitable for metrological verification departments, scientific research institutes, mask manufacturers and other relevant departments to measure the bacterial filtration efficiency (BFE) of medical face mask materials.
標準:
YY 0469-2004外科マスク技術要求
BS EN 14683-2014医療用マスク-要求と試験方法
ASTM F 2100-2019医療用マスク材料性能基準規範
ASTM F 2101黄色ブドウ球菌バイオエアロゾルを用いた医療用マスク材料の細菌濾過効率（BFE）評価のための標準的な試験方法
Parameter:
Sampling flow rate of Path A | 28.3L/min |
Sampling flow rate of Path B | 28.3L/min |
Nebulization flow rate | (8~10)L/min |
Peristaltic pump flow rate | 0.006~3mL/min |
Negative pressure of aerosol chamber | -90~-120Pa |
Negative pressure of cabinet body | (-50~-200)Pa |
Andersen | I>7μm, II. 4.7-7μm, III. 3.3-4.7μm, IV. 2.1-3.3μm, V. 1.1-2.1μm VI. 0.6-1.1μm |
Size of glass aerosol chamber | L600×diameter85Xthick3)mm |
Outer 寸法すんぽう | 1180*650*1300cm(L*W*H)mm |
Power supply | 220V 50Hz |
Instrument characteristics:
1. Professional negative pressure biological safety cabinet technology to ensure the safety of operators and the environment.
2. High negative pressure working cabin, two-stage high-efficiency filter, 100% safe discharge.
3. Adopt two-way six-level Anderson precise sampling.
4. Built-in peristaltic pump with adjustable flow rate.
5. Special microbial aerosol generator, the flow rate of bacterial liquid spray is adjustable, and the atomization effect is good.
6. Industrial-grade large color touch screen control, the operation is simpler.
7. The control system adopts PLC + LabView control, high-intensity color touch screen 10 inches, USB interface, supports U disk data transfer;.
8. The safety cabinet has built-in LED lighting for easy observation.
9. Built-in ultraviolet disinfection lamp to enhance the protection effect.
10. The front switch type sealed glass door is convenient for operation and observation.
11. With operating software, it can be controlled and processed by computer.
12. Seamlessly connect the laboratory information management system.
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