GBPI GB-PFE – Mask Particle Filtration Efficiency Tester (Dual NaCl & Oil Aerosol)
- Automated mask particle filtration efficiency tester for respiratory protective masks and filter media
- Full testing compliance with NIOSH 42 CFR Part 84, EN 149, EN 143, GB 2626, and ASTM F2100
- Dual aerosol challenge generators for both Sodium Chloride (NaCl) and Paraffin Oil (DOP) particles
- Filtration efficiency measurement range from 0% to 99.999% with resolution of 0.001%
- Simultaneous determination of air flow resistance from 0 to 1000 Pa with ±2% accuracy
- Calibrated particle size distribution: Salt (0.075 ± 0.02 μm) and Oil (0.185 ± 0.02 μm)
- Integrated touch HMI with automated pneumatic clamping, test curve display, and batch report printing
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The GBPI GB-PFE is a high-precision, automated mask particle filtration efficiency tester engineered to determine the particulate filtration efficiency (PFE) and respiratory flow resistance of surgical masks, medical face coverings, filtering half-masks (such as N95, FFP2, FFP3, and KN95 respirators), and non-woven filter media. Built in strict conformity with premier international standards including NIOSH 42 CFR Part 84, EN 149, EN 143, and GB 2626, this test system provides certified laboratories and mask manufacturers with definitive filtration qualification data.
Respiratory protective equipment serves as the primary barrier preventing the inhalation of hazardous sub-micron aerosols, airborne pathogens, and industrial dusts. The filtration capability of meltblown electret non-woven fabrics depends on mechanical interception, inertial impaction, diffusion, and electrostatic attraction. Operating as a dual-challenge mask particle filtration efficiency tester, the GBPI GB-PFE incorporates two independent aerosol generation systems: a collision atomizer generating neutral-charge sodium chloride (NaCl) solid salt aerosols for particulate classification, and an oil aerosol generator delivering heated paraffin oil (or DOP) liquid droplets for oil-resistant respirator certification.
Dual Aerosol Generators & Precision Photometers
The instrument features high-sensitivity forward light-scattering laser photometers upstream and downstream of the test specimen. By continuously measuring aerosol mass concentrations before and after passage through the filter medium at flow rates adjustable between 10 and 100 L/min, the system calculates filtration efficiency with a resolution of 0.001% across a broad concentration spectrum (0.001 to 200 mg/m³).
Simultaneous Inhalation Resistance Evaluation
Simultaneously with filtration efficiency quantification, integrated electronic differential pressure transducers measure breathing resistance across the filter medium up to 1000 Pa with ±2% accuracy. This dual-parameter characterization ensures respirators achieve the optimal balance between high particle retention and comfortable breathability.
Equipped with pneumatic specimen clamping fixtures, an intuitive touchscreen controller, and automated test sequence sequencing, the GB-PFE delivers rapid, repeatable quality assurance for PPE production lines.
GBPI GB-PFE Particle Filtration Efficiency Tester – Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Test Principle | Dual Aerosol Photometric Particle Filtration Efficiency & Differential Pressure |
| Applicable Standards | NIOSH 42 CFR Part 84, EN 149, EN 143, GB 2626, JIS/T 8151, ASTM F2100 |
| Filtration Efficiency Range | 0% ~ 99.999% (Resolution: 0.001%) |
| Challenge Aerosol Types | Sodium Chloride (NaCl) Solid Particles and Paraffin Oil (or DOP) Droplets |
| Counting Median Diameter (CMD) | Salt Particles: (0.075 ± 0.02) μm; Oil Particles: (0.185 ± 0.02) μm |
| Geometric Standard Deviation | Salt Particles ≤ 1.86; Oil Particles ≤ 1.60 |
| Flowmeter Range & Accuracy | 10 L/min ~ 100 L/min (Digital flow regulation; Accuracy: ±2%) |
| Flow Resistance Range | 0 ~ 1000 Pa (Accuracy: ±2%; Resolution: 0.1 Pa) |
| Particle Concentration Range | 0.001 ~ 200 mg/m³ (Dynamic detection range: 0.001 ~ 100 mg/m³, accuracy 1%) |
| Test Fixture Effective Area | Standard 100 cm² flat filter clamp (Optional complete mask headform) |
| Overall Dimensions | 1220 mm (L) × 630 mm (W) × 1225 mm (H) |
| Power Supply & Requirements | AC 220 V ±10%, 50 Hz; Clean compressed air source (>0.5 MPa) |
Key Features & Engineering Highlights
- Dual Challenge Versatility: Seamlessly switch between NaCl salt aerosol and paraffin oil aerosol for comprehensive respiratory PPE testing.
- High Efficiency Resolution: Measures particle retention up to 99.999% with 0.001% resolution, meeting HEPA and N99/FFP3 standards.
- Dual Forward-Scattering Photometers: High-precision laser detectors continuously sample upstream and downstream concentrations simultaneously.
- Simultaneous Flow Resistance Measurement: Electronic differential pressure sensors record inhalation airflow resistance alongside filtration efficiency.
- Automated Pneumatic Clamping: Ergonomic pneumatic cylinder seals specimens hermetically without manual edge leakage.
- Built-In Touchscreen Operating System: Automated calibration routine, live parameter curves, and historical data logging.
- Integrated Thermal Printer: Instant generation of test certificates with efficiency percentages, pressure drop, and operator timestamps.
Standard Package & Accessories
| Item Description | Quantity |
|---|---|
| GBPI GB-PFE Particle Filtration Efficiency Tester Mainframe | 1 Unit |
| Integrated NaCl Salt Aerosol Generator Assembly | 1 Set |
| Integrated Paraffin Oil / DOP Aerosol Generator Assembly | 1 Set |
| Standard Flat Filter Media Test Fixture (100 cm²) | 1 Set |
| Forward Light-Scattering Laser Photometer Pair | 2 Units |
| Power Supply Cable, Air Hoses & Calibration Certificate | 1 Set |
Target Industry Applications
Respirators & Medical Face Masks
Testing N95, N99, FFP1, FFP2, FFP3, and KN95 surgical and industrial respirators for compliance with NIOSH 42 CFR 84 and EN 149.
Meltblown & Non-Woven Media
Quality inspection and electrostatic electret charging validation for raw polypropylene meltblown fabric rolls.
HVAC & Air Purifier Filters
Evaluating HEPA and ULPA filtration efficiency and air permeability for cleanroom ventilation and automotive cabin air filters.
Third-Party Testing Laboratories
Standard reference instrument for PPE certification bodies, medical device inspection institutes, and regulatory authorities.