ENI822-3:2009 Laboratory Automated EN 143 Particle filtration efficiency tester (PFE) 

Scope of application:

PFE tester is used to detect the filtration efficiency of particulate matter such as daily masks and filters. Factory direct sales, mask inhalation and exhalation filter or filtration efficiency tester automated filter tester.

Standards:

EN 149

NIOSH 42 CFR 84

BS EN143:2000

YY/T 2626-2019 respiratory protection products

ENI822-3:2009

Instrument structure:

Including spray pump, electrostatic neutralizer, cylinder, flowmeter, PLC industrial control system, fan, exhaust gas filter, flow transmitter, differential pressure sensor, touch screen computer, oil mist aerosol generator, salt spray aerosol generator, etc.

Technical Parameters:

Main components:

Salt spray aerosol generation system:

- it can produce salt aerosols that meet the requirements of standard particle size distribution;

Oil mist aerosol generation system:

-it can produce oil aerosol meeting the standard particle size distribution requirements;

Electrostatic distance system:

- used to neutralize static electricity in salt fog aerosol;

Mixing chamber:

- mixing heating gas and salt spray aerosol to produce salt particles meeting the requirements;

Aerosol switching system:

- convenient switching of aerosol;

Filter material clamp:

- used to hold filter material or mask;

Pressure difference sensor:

- used to measure the pressure difference between upstream and downstream of filter material;

Flow controller:

- control and adjust the measured air volume;