1. Product Introduction
Developed by Jinan SUPER Technology Co., Ltd., the Particulate Protection Efficiency and Filtration Efficiency Tester is designed to test the particulate protection performance and filtration efficiency of daily protective masks and respirators.
It is widely applicable to medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug control institutions, centers for disease control and prevention, hospitals, as well as manufacturers of masks and respirators.
Applicable Standards:
YY 0469-2011 Surgical Masks for Medical Use
GB 2626-2006 Respiratory protective equipment
GB 19083-2010 Technical requirements for protective face masks for medical use
II. Features of Particulate Protection Efficiency and Filtration Efficiency Tester
Equipped with a cold aerosol generator to produce continuous and stable aerosol particles; solution filling is convenient.
High-precision PM2.5 sensors are adopted to measure aerosol concentration.
Full-process particulate leakage-proof design ensures operator safety.
Compatible with masks and respirators for testing their particulate protection efficiency and filtration efficiency.
The aerosol generator can produce either salt-based or oil-based particulate aerosols.
Fitted with an aerosol charge neutralizer for particulate matters.
Pneumatic clamps with protective devices ensure safe and easy operation.
Built-in temperature and humidity sensors display ambient conditions in real time.
Equipped with glass rotameter, vacuum pump and laser particle counter.
The test chamber for protection efficiency adopts a front-opening design with excellent tightness. Operating gloves are installed for easy replacement of test masks.
III. Technical Parameters
Ambient requirements: Temperature 25℃ ±5℃, Relative Humidity 30%RH ±10%RH
Filtration efficiency testing range: 0 - 99.999%
Flowmeter range for filtration efficiency test: (10 - 100) L/min, tolerance ±2%; Standard test flow: (85 ± 2) L/min
Sampling frequency for filtration efficiency: Adjustable from 1 to 9999 times per minute
Particulate concentration for filtration efficiency test: (20 - 30) mg/m³
Count median diameter: Salt particles (0.075 ± 0.02) μm; Oil particles (0.185 ± 0.02) μm
Geometric standard deviation of particle size distribution: ≤1.86 for salt particles; ≤1.60 for oil particles
Dynamic concentration testing range: (0.001 - 100) mg/m³, accuracy: 1%
Protection efficiency test: Equipped with 1 standard headform to simulate the actual wearing state of protective masks.
Aerosol for protection efficiency test: Concentration in test chamber (20 - 30) mg/m³ (adjustable), concentration fluctuation ≤ ±10%.
Particle size distribution of generated aerosol: 0.02 - 2 μm
Mass median diameter: 0.6 μm for salt particles; 0.3 μm for oil particles
Aerosol concentration detection unit for protection efficiency: Gas sampling flow (1 - 2) L/min; Sampling frequency: 20 times per minute (adjustable from 1 to 9999 times per minute); Dynamic testing range (0.001 - 100) mg/m³, accuracy: 1%
Suction sampling tube for inhaled gas is arranged right below the nostrils (inside the oral cavity).
A breathing simulator is used to simulate human breathing.
Breathing simulator parameters: Sinusoidal airflow, breathing frequency 20 times per minute, breathing flow (30 ± 1) L/min; Flow range for respirator test: 0 - 40 L/min
Instrument accuracy class: Class 1
Control system: The whole test process is controlled by computer with automatic data acquisition. Dedicated computer and test software are configured.
Automatic functions: Real-time display of aerosol concentration in test chamber, inhaled gas concentration and background concentration; automatic calculation of filtration efficiency and protection efficiency. Test data can be saved, exported, retrieved and printed.
Power supply: AC220V, 50Hz
IV. Applicable Standards
GB 2626-2006 Respiratory protective equipment - Self-inhalation filter type particulate respirators
GB 19082-2009 Technical requirements for single-use medical protective clothing
GB 19083-2010 Technical requirements for protective face masks for medical use
YY 0469-2011 Surgical masks for medical use
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