Bacterial Filtration Efficiency Tester (BFE)

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: