Filter Media Testing System

The Filter Media Testing System is designed for precise evaluation of filter media and small filter elements. It measures particle filtration efficiency, pressure drop, and fraction separation efficiency under controlled laboratory conditions. The system supports product development, production monitoring, quality control, and compliance testing across a wide range of filter types, including cabin air filters, engine air filters, and indoor air filters. With high repeatability and internationally comparable results, it is suitable for laboratories, manufacturing facilities, and research institutions.

Application

This system is widely used to test filter media and small filter elements during product development, production monitoring, and quality assurance. It is applicable to cabin air filters, engine air filters, and indoor air filters, and supports testing according to ISO 11155-1, DIN 71460-1, ISO 5011, and ISO 16890. Various versions of the system can be configured to conform to additional international and national standards. Its flexible design allows the use of multiple aerosol types, including SAE dust, NaCl/KCl salts, and DEHS liquid aerosols, to simulate real-world operating conditions and verify filter performance under load.

Standards Compliance

(1) ISO 11155-1: Road vehicles — Air filters for occupants’ compartments — Part 1: particulate filtration test

(2) DIN 71460-1: Road vehicles — Air filters for passenger compartments — Part 1: particulate matter filtration tests

(3) ISO 5011: Air filters for internal combustion engines — Performance testing

(4) ISO 16890: Air filters for general ventilation — Particulate matter efficiency testing

Product Features

(1) Simultaneous measurement of particles in feed gas and clean gas.

(2) Particle size measurement range from 0.2 to 40 µm.

(3) Maximum particle concentration up to 10⁶ particles/cm³ (undiluted).

(4) High repeatability and internationally comparable results.

(5) Compatible with various test aerosols such as SAE coarse powder, NaCl/KCl, and DEHS.

(6) Capable of measuring fraction separation efficiency for load testing with high raw gas concentrations (>1000 mg/m³ ISO Fine, >5000 mg/m³ ISO Coarse).

(7) Flexible filter testing software (FTControl) for automated testing, data collection, and analysis.

(8) Easy operation for trained or untrained personnel, with short setup time.

(9) Mobile setup on casters for convenient relocation.

(10) Low maintenance and reliable operation, reducing overall operating costs.

(11) Verifies the functionality of individual components and the complete system during pre-delivery acceptance and commissioning.

Technical Parameters

Accessories

(1) U-SMPS 2050 particle size analyzer

(2) Aerosol generation system for dust, salt, and liquid aerosols

(3) Pressure sensors and differential pressure monitoring

(4) Data acquisition and FTControl software

(5) Filter mounting fixtures for various sizes

(6) Mobile casters for convenient repositioning

Operation and Maintenance

(1) Install the filter media securely in the test area and verify proper sealing.

(2) Select appropriate aerosol type and concentration for the test.

(3) Set flow rate, inflow velocity, and measurement parameters using FTControl software.

(4) Monitor real-time particle counts, differential pressure, and other key parameters during the test.

(5) Generate and save test reports automatically after each measurement cycle.

(6) Perform periodic cleaning and calibration of aerosol generators, sensors, and flow systems.

(7) Check the system for leaks and mechanical integrity before each test.