General Ventilation Air Filter Test System

Application Scenarios

The General Ventilation Air Filter Test System is specially designed for evaluating the performance of air filters used in HVAC systems, cleanrooms, commercial buildings, industrial workshops, and public facilities.

It can be used for:

Filter product R&D and certification testing by manufacturers.

Quality control and batch verification in filter production lines.

Performance comparison with imported filter products.

Third-party testing and laboratory performance validation.

The system enables precise testing of filter parameters such as airflow resistance, fractional efficiency, dust holding capacity, and pressure differential versus airflow, ensuring filter quality and compliance with international standards.

Compliant Standards

The test bench is designed and manufactured strictly in accordance with the following standards:

ISO 16890 — Air filters for general ventilation.

EN 779 — Particulate air filters for general ventilation — Determination of the filtration performance.

ASHRAE 52.2 — Method of testing general ventilation air-cleaning devices for removal efficiency by particle size.

GB/T 14295-2019 — Air filters for general ventilation (China National Standard).

These standards ensure global compatibility of test results and make the system suitable for international filter certification and export testing requirements.

Technical Parameters

Functional Advantages

1. Multi-Functional Performance Testing

The system supports a wide range of filter performance evaluations, including:

Airflow resistance test

Fractional efficiency and average efficiency test

Dust holding capacity and arrestance test

Pressure differential versus airflow test

It provides comprehensive data for filter development, performance validation, and classification.

2. High Precision and Stable Operation

Adopts imported particle counters, precision differential pressure sensors, and temperature/humidity sensors to ensure high testing accuracy.

The entire test system operates under negative pressure, ensuring operator safety and data consistency.

Automatic calibration and system self-cleaning functions guarantee long-term stability.

3. Advanced Automation and Intelligent Control

The system automatically performs each testing step, from filter installation and parameter input to aerosol generation, data acquisition, and report output.

Automatic switching of upstream/downstream particle counters, aerosol generator control, and sealing operations are achieved via solenoid valves.

Real-time monitoring and feedback enable fully unattended testing.

4. Integrated Software System

The software provides real-time visualization of airflow, pressure, and efficiency curves.

Automatic calculation of fractional efficiency, average efficiency, and pressure differential curves.

Generates detailed test reports (Excel/PDF) with filter model, parameters, and performance summary.

Supports multilingual interface, customized report templates, and automatic data backup.

5. High Adaptability and Easy Maintenance

Modular design allows quick filter replacement and easy maintenance.

Suitable for filters of different sizes and structures, with adaptable fixtures.

Compact and elegant design saves installation space—ideal for laboratory or factory environments.

6. Reliable Dust Feeding and Filtration System

The self-developed automatic dust feeder ensures stable dust concentration throughout testing.

Equipped with an F8-grade V-bank absolute filter system, ensuring clean operation and accurate results.

Uniform aerosol mixing guarantees reliable upstream/downstream particle measurements.