Bacterial Filtration Efficiency Tester (BFE)

Measure the bacterial filtration efficiency (BFE) of medical face mask materials, employing a ratio of the upstream bacterial challenge to downstream residual concentration to determine filtration efficiency of medical face mask materials.

Product Model: R-FM027
Design Standard: ASTM F 2100, ASTM F 2101, EN 14683

Application:

Bacterial Filtration Efficiency Tester measures the bacterial filtration efficiency (BFE) of medical face mask materials. It adopts quantitative method allows the filtration efficiency of face mask to be determined. The max. filtration efficiency can be 99.9%.

 

Test Standard:

ASTM F 2100, ASTM F 2101, EN 14683

 

Specification:

Vacuum pump

Oil-free rotary vane vacuum pump, max. flow rate up to 57LPM, equipped with silencer with stable air flow

Flow control of Aerosol generator

Mass flow controller for precise control

Sampling flow

28.3L/min, resolution 0.1L/min

Air pressure

0~5KPa

Spray flow meter pressure

0~300kPa

Negative pressure of aerosol chamber

0~120KPa

Working temperature

0~50℃

Chamber negative pressure

0~120Pa

Mass flow controller

0~20L/min, resolution 0.1L/min

Peristaltic pump flow

0.01~3mL/min

Data storage capacity

Download test data by U disk

Air filter efficiency

≥99.99%@0.3μm

Median of Nebulizer

Average particle diameter (3.0±0.3) µm, geometric standard deviation≤1.5

Six-Stage Viable Particle Cascade Impactor

Ⅰ>7μm; Ⅱ4.7~7μm; Ⅲ3.3~4.7μm; Ⅳ2.~3.3μm; Ⅴ1.1~2.1μm; Ⅵ0.6~1.1μm

Aerosol chamber dimension

600*80*5mm

Viable particles per test

2200±500cfu

Ventilation flow of negative pressure system

800m3/min

Operation system

PC with software, USB port for data output

Power supply

1-phase, AC220V, 50Hz, 1500W

Machine size

1200W*650D*2100Hmm

Weight

120kg

Featres:

1. Negative pressure test system to ensure the safety of operators.

2. Negative pressure cabinet has built-in peristaltic pump, A and B two-way six-stage Anderson.

3. The flow rate of peristaltic pump can be set according to situation.

4. The flow rate of bacteria liquid mist of microbial aerosol generator can be set, with good atomization effect.

5. Industrial microcomputer control.

6. High-brightness color touch screen.

7. USB interface, support U disk data transfer.

8. Built-in lighting for observation.

9. Built-in leakage protection switch to protect the safety of operators.

10. Glass door is convenient for operators to observe and operate.

 

Figure of Test Apparatus:


 

 

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