Name: Face Mask Bacterial Filtration Efficiency (BFE) Tester - QualiBFE
SKU: ZKE1D50H4X
Availability: InStock
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Face Mask Bacterial Filtration Efficiency (BFE) Tester - QualiBFE

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Product code: ZKE1D50H4X

Face Mask Bacterial Filtration Efficiency (BFE) Tester is designed to evaluate the percentage of bacteria-laden…

Face Mask Bacterial Filtration Efficiency (BFE) Tester - QualiBFE Technical Specifications

Key Specification	Specification Range	Resolution	Accuracy
A Route Sampling Flow	28.3L/min	0.1L/min	Within ± 2.%
B Route Sampling Flow	28.3L/min	0.1L/min	Within ±2.%
Spray Flow	(0.1~10)L/min	0.1L/min	Within ±2.5%
Peristaltic Pump Flow	(0.001~3.0)mL/min	0.001ml/min	Within ±2.5%
Front Pressure of A Route Sampling Flowmeter	(-20~0)kPa	0.01kPa	Within ±2.5%
Front Pressure of B Route Sampling Flowmeter	(-20~0)kPa	0.01kPa	Within ±2.5%
Front Pressure of Spray Flowmeter	(0~300)kPa	0.1kPa	Within ±2.5%
Ambient Temperature	(-40~99)℃	0.1℃	Within ±2.5%
Negative Pressure of the Aerosol Chamber	(-90~-120)Pa	0.1Pa	Within ±2.0%
Negative Pressure of the Cabinet	-50~-200pa
Data Storage Ability	>100000 sets
Vortex Mixer Test Tube Specification and Quantity	Φ16×150mm test tube，8pcs
High Efficiency Particulate Air Filter Properties	Filter Efficiency≥99.99% for particles> 0.3μm
Median diameter of aerosol generator mass	Average diameter: (3.0±0.3)μm; Geometric Standard Deviation≤1.5
Double Routes 6-lever Andersen Sampling apparatus	Level1>7μm; Level 2: (4.7~7)μm; Level 3: (3.3~4.7)μm; Level 4: (2.1~3.3)μm; Level 5: (1.1~2.1)μm; Level 6: (0.6~1.1)μm
Size of Aerosol Chamber	600×85×3mm (Length×Diameter×Thickness)
Total number of positive quality control sampler particles	(2200±500)cfu
Negative Chamber Flow Speed	≥5m3/min
Size of Negative Pressure Chamber Door(W×D)	1000×730mm
Size of Main Machine(W×D×H)	1180×650×1300mm
Size of Supporting Frame(W×D×H)	1180×650×600mm, Height within 10cm is adjustable
Noise of the Tester	<65dB(A)
Weight	150kg
Voltage	AC220V±10%, 50Hz (110V is also available)
Power Consumption	<1500W

Face Mask Bacterial Filtration Efficiency (BFE) Tester - QualiBFE Features

Negative Pressure Safety System: Ensures operator safety by maintaining a controlled negative pressure environment.

Integrated Negative Pressure Cabinet: Equipped with a peristaltic pump and dual six-stage Andersen samplers (A and B pathways).

Adjustable Flow Rate: The peristaltic pump's flow rate can be configured to meet specific test requirements.

Advanced Aerosol Generator: Features a microbial aerosol generator with adjustable bacterial liquid spray flow for optimal atomization.

High-Speed Microcomputer Control: Embedded industrial-grade microcomputer for precise operation and monitoring.

10.4-Inch Color Touchscreen: Industrial-grade, high-brightness display for intuitive and efficient control.

USB Data Transfer: Includes a USB interface for seamless data transfer via external drives.

Built-In Lighting: High-brightness internal lighting enhances visibility during experiments.

Leakage Protection: Integrated leakage protection switch for added operator safety.

Insulated and Flame-Retardant Design: Dual-layer insulation between the inner and outer layers ensures safety and durability.

Transparent Switch Glass Door: Provides clear visibility for observing and operating experiments.

Adjustable Stand: Detachable stand with adjustable height for ergonomic operation.

Dual-Purpose Casters: Support both stationary positioning and mobility for flexible use.

Face Mask Bacterial Filtration Efficiency (BFE) Tester - QualiBFE

Face Mask Bacterial Filtration Efficiency (BFE) Tester is designed to evaluate the percentage of bacteria-laden particles filtered by materials at a specified flow rate. Utilizing a dual gas-path simultaneous comparison sampling method, it ensures high sampling accuracy. This device is ideal for testing the bacterial filtration efficiency (BFE) of medical surgical masks and is widely used by metrological inspection agencies, research institutions, medical mask manufacturers, and other relevant organizations.

The QualiBFE tester measures the filtration efficiency of medical face mask materials by comparing the upstream bacterial challenge to the downstream residual concentration. The device provides a controlled bacterial aerosol flow, allowing operators to calculate the number of colony-forming units (CFUs) that pass through the test material. The material is secured between a six-stage Anderson cascade impactor and an aerosol chamber, and results are expressed as a percentage of CFUs present in the challenge aerosol.