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Mask BFE Tester DW0530

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Medical face masks BFE tester is short for Medical Face Masks Bacterial Filtration Efficiency TesterThe mask BFE Tester is suitable for  mask manufacturers  to measure the bacterial filtration efficiency (BFE) of medical face mask materials. BFE tester is a very basic but very critical testing items.

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Medical Face Masks BFE Tester DW0530 

DW0530 Medical Face Masks Bacterial Filtration Efficiency (BFE) Tester, also called mask BFE Tester 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.

mask BFE tester  is a basic testing for mask filter material. PFE TESTER, BFE tester,Mask Synthetic Blood Penetration Tester, Medical Face Mask Air Exchange Differential Pressure Tester, these four items are very basic testing for masks.

what is PFE, BFE, VFE meaning?

PFE is the abbr. of particle filtration efficiency, which is a test according to BS EN 143

BFE is abbreviation of The Bacterial Filtration Efficiency, this is a test to determine value which is performed on filtration materials and devices that are designed to provide protection against biological aerosols, such as face masks, surgical gowns, caps, and air filters, etc.

 

VFE is abbreviation of the viral filtration efficiency, it is a special test to simulate the virus to pass through filter material which is made for facial mask, gowns, etc. it has similar process and standard as BFE test.

 

PFE was measured using 0.1 µm size polystyrene latex particles.

BFE with 3.0 µm size particles, which contains Staphylococcus aureus bacteria

VFE was obtained using ∼3.0 µm size particles containing phiX 174 as the challenge virus.

 

 

Application

Application ofMedical Face Masks BFE Tester

DW0530 Medical Face Masks Bacterial Filtration Efficiency (BFE) Tester 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. On the basis of complying related standards, its innovative dual air paths for simultaneous contrast sampling enhance the accuracy of sampling.

Standards

Standards ofMedical Face Masks BFE Tester

STANDARDS ASTM F2100-01 / F2101-07 EN 14683 YY0469-2011 Annex B

Note: this medical BFE tester can conform to but not limit to the standards above, for more standards conformance, please contact us.

Key specification

Key specification of Medical Face Masks BFE Tester

Range Resolution Maximum permissible errors
Flow rate of sampling path A 28.3L/min 0.1L/min ±2.5%
Flow rate of sampling path B 28.3L/min 0.1L/min ±2.5%
Nebulization flow rate (8~10)L/min 0.1L/min ±5.0%
Peristaltic pump flow rate (0.006~3.0)mL/min 0.001ml/min ±2.5%
Flow meter fore pressure of path A (-20~0)kPa 0.01kPa ±2.5%
Flow meter fore pressure of path B (-20~0)kPa 0.01kPa ±2.5%
Nebulization flow meter fore pressure (0~300)kPa 0.1kPa ±2.5%
Negative pressure of aerosol chamber (-90~-120)Pa 0.1Pa ±2.0%

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