Suzhou Sujing Automation Equipment corporation limited
Suzhou Sujing Automation Instrument Equipment Co.,Ltd.
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Mask Bacteria Filtration Efficiency (BFE) Tester Filter Tester
Mask Bacteria Filtration Efficiency (BFE) Tester is mainly used for the measurement of mask bacterial filtration efficiency performance by metrological verification departments, scientific research institutes, medical mask production units and their related testing departments. It is composed of aerosol generating system, aerosol chamber and aerosol transmission device, negative pressure cabinet, 28.3L / min sampler, etc., and the entire detector is controlled by the console. The console uses a microcomputer control system to coordinate and control the work of the aerosol generation system, transmission system, negative pressure cabinet, and sampling system, and displays the working status in real time. The entire measurement work is automatically completed.
Features of BFE filter tester
| Main parameter of BFE filter tester | Range | Resolution | Accuracy |
| Anode quality control sampling flow | 28.3 L/min | 0.1 L/min | ±2% |
| Sampling flow | 28.3 L/min | 0.1 L/min | ±2% |
| Spray flow | 0.1 ~ 10 L/min | 0.1 L/min | ±5% |
| Peristaltic pump flow | 0.01~3 mL/min | 0.01 mL/min | ±2% |
| Operating temperature | 0~50 ℃ | ||
| Biosafety zone negative pressure | -90 ~ -120 Pa | ||
| Data storage capacity | 20G | ||
| Data output and interface | USB(3) | ||
| HEPA performance | ≥99.995%@0.3μm,≥99.9995%@0.12μm | ||
| Total number of positive quality control sampler particles | 2200±500 cfu | ||
| Aerosol generator mass median diameter | Average particle diameter (3.0±0.3 µm),geometric standard deviation≤1.5 | ||
| Six-stage Anderson sampler capture particle size | classⅠ>7 µm; classⅡ(4.7~7 µm); class Ⅲ(3.3~4.7 µm); class Ⅳ (2.1~3.3 µm); classⅤ(1.1~2.1 µm); class Ⅵ(0.6~1.1 µm) | ||
| Aerosol chamber specifications | 600 x 80x 3.0mm (Length diameter thickness) | ||
| Ventilation flow of negative pressure cabinet | >5m3/min | ||
| Host size | Working area: 870*600*1100mm Dimensions:1250*700*2000mm | ||
| Working noise | < 65db | ||
| Working power | AC220±10%,50Hz,1KW | ||
