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Medical Face Mask Bacterial Filtration Efficiency (BFE)Tester
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Standards:
Applications:
Medical Face Mask Bacterial Filtration Efficiency (BFE)Tester-Suitable for professional filtration testing.
The Medical Face Mask Bacterial Filtration Efficiency (BFE) Tester is mainly used to evaluate the bacterial filtration performance of medical face masks and protective masks. It is widely applied in mask manufacturers, medical product inspection institutions, quality control laboratories, and research facilities for product performance verification, quality assessment, and compliance testing.
Product Information:
Face Masks bacterial filtration efficiency BFE 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 tester provides certain flow rate of bacterial aerosol. The operator can measure the number of colony forming units passing through the medical face mask material, which is clamped between a six-stage Anderson cascade impactor and an aerosol chamber, expressed as a percentage of the number of colony forming units present in the challenge aerosol.
Standards：
EN 14683Medical face masks-Requirements and test methods.
ASTM F2101 Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureus.
ASTM F2100Standard Specification for Performance of Materials Used in Medical Face Masks
YY 0469Technical requirements for surgical mask.
Features：
Double six-stage Anderson microbial sampler test systems with contrast sampling tests provide high accuracy.
Internal aerosol generator provides stable and adjustable microbial aerosol flow. Internal pump can adjust the flow rate.
Equipped negative pressure test chamber to ensure the safety of operators. Equipped light system to make the operations more clear and easy to do.
10.4 Inch touch screen control panel is easy to operate and supports USB data transmission.
Equipped leakage protection and operating window provide better operating view and safety operating conditions.
Stainless steel chamber with insulation and fire retardant lining is stable and reliable.
Specification：
| Item | Detail |
| A Anderson sampler | 28.3l/min, 0.1l/min |
| Aerosol fluid | 8-10l/min, 0.1l/min |
| Pump | 0.006-3.0ml/min, 0.001ml/min |
| Pressure for A Anderson sampler | -20-0kPa,0.01kPa |
| Pressure for B Anderson sampler | -20-0kPa,0.01kPa |
| Pressure for chamber | -90–120kPa |
| Flow rate for ventilating | 5m3/min |
| HEPA filtration | ≥99.99% for particle over 0.3μm |
| Diameter for aerosol | 3.0±0.3μm |
| Capture diameter for Anderson sampler | Ⅰgrade >7μm，Ⅱgrade（4.7-7）μm， Ⅲgrade（3.3-4.7）μm，Ⅳgrade（2.1-3.3）μm， Ⅴgrade（1.1-2.1）μm，Ⅵgrade（0.6-1.1）μm |
| CFU | 2200±500cfu |
| Power supply | 220 AC 50Hz |
| Dimension | 1200mm×700mm×2200mm |
| Net weight | 210 kg |
FAQ:
1. What is a Medical Face Mask BFE Tester used for?
It is used to measure the bacterial filtration efficiency of medical face masks and evaluate their protective performance.
2. What masks can be tested by this equipment?
It is suitable for testing medical masks, surgical masks, and other protective face masks.
3. Which standards does the tester comply with?
It is commonly used according to standards such as ASTM F2101. EN 14683. and related mask performance testing requirements.
4. How does the BFE test work?
The tester passes aerosolized bacterial particles through the mask sample and calculates the filtration efficiency.
5. What are the advantages of this tester?
It provides accurate results, stable performance, easy operation, and reliable quality evaluation for mask manufacturers and laboratories.
