Shanghai Jingqi Mask Particle Automatic Filtration Efficiency (PFE) Performance Tester, Shanghai Jingqi Instrument Co., Ltd. (CAT#: STEM-AI-0887-YJL)

Shanghai Jingqi Mask Particle Automatic Filtration Efficiency (PFE) Performance Tester, model STEM-AI-0887-YJL is manufactured by Shanghai Jingqi Instrument Co., Ltd.
The aerosol emitted by the aerosol generator needs to undergo two treatments before reaching the test filter material. 1. Generate aerosol salt particles by mixing with heated gas (for salt spray). 2. Neutralize the static electricity carried by the aerosol through the static neutralizer, which is used to reduce the particle loss and the influence of static electricity on the test results.
After the aerosol is processed by the above two procedures, it reaches the surface of the test filter material at a certain flow rate (flow rate), and the test procedure starts. For the filtration efficiency test, the test time is very short, and it only takes a few seconds to complete the test on a piece of filter material. For the loading experiment, the test experiment is relatively long. The number concentration or mass concentration of the aerosol upstream and downstream of the filter material is measured by a particle counter or a laser scattering photometer, and the filtration efficiency is calculated. At the same time, the pressure drop on both sides of the filter material is monitored by a differential pressure sensor.

Control mode: Automatic
Test cycle: 30s or others
Sample flow rate: 10-100L/min
Filter cross-section: various/according to usage requirements
Sample clamping: Pneumatic clamping
Sensors: temperature sensor, relative humidity sensor, barometric pressure sensor
Particle counter: 0.3-1.0μm/0.1-0.5μm/0.1-1.0μm/1.0-10.0μm/10.0-100μm
Weight: 155kg
Power supply: 220V 50Hz
Test solution: DEHS, PAO, Paraffiffin Oil, Dust or others
Appearance size (L*W*H): 900mm x 850mm x 1650mm
Pressure difference: 2000Pa±1%FS
Standards compliant:
NIOSH 42 CFR Part 84 Respiratory Protective Devices
EN 134 Respirators. Particulate filters. Requirements, testing and marking
JMOL Japanese protective mask standard
GB 19083 Technical requirements for medical protective masks
GB2626 Self-priming filter anti-particulate respirator
GB 32610 Technical Specifications for Daily Protective Masks

Smart touch screen control + test report printing:
PLC control system, more efficient and reliable, programmable 7-inch color LCD touch screen, realize control, monitoring, calculation, data display and other functions
Various test fixtures:
The instrument has a variety of test fixtures, which can test different types of masks.
high degree of automation:
The equipment is designed as a dual-control pneumatic clamping method, which is easy to operate and high in safety.
Powerful built-in features:
The equipment can test the penetration efficiency, penetration resistance and flow rate. At the same time, the flow pressure difference of the equipment can be set arbitrarily, which can meet various experiments, with stable performance and good repeatability of test data.

Shanghai Jingqi Digital Whiteness Meter WSB-3 (CAT#: STEM-AI-0812-YJL)
Shanghai Jingqi Digital Fluorescent Whiteness Meter WSB-3C (CAT#: STEM-AI-0813-YJL)
Shanghai Jingqi Digital Whiteness Meter WSB-3A (CAT#: STEM-AI-0814-YJL)
Shanghai Jingqi Digital Fluorescent Whiteness Meter WSB-3AC (CAT#: STEM-AI-0815-YJL)
Shanghai Jingqi Digital Whiteness Meter WSB-2 (CAT#: STEM-AI-0816-YJL)
Shanghai Jingqi Portable Whiteness Meter WSB-1 (CAT#: STEM-AI-0817-YJL)