General Ventilation Filter Test Stand
The General Ventilation Filter Test Stand is designed for performance evaluation of air filters used in HVAC and general ventilation systems. It provides accurate and repeatable measurements of airflow rate, pressure drop, and particle filtration efficiency under controlled laboratory conditions. The system integrates automated airflow control, aerosol generation, particle counting, and data acquisition, making it suitable for product testing, quality control, and compliance verification of general ventilation air filters.
Application
The General Ventilation Filter Test Stand is applicable to the performance testing of the following products and scenarios:
(1) General ventilation air filters used in HVAC systems for commercial buildings, offices, shopping malls, and public facilities
(2) Panel filters (G, M, F classes) for residential and commercial ventilation systems
(3) Pleated air filters for air handling units (AHU) and rooftop units
(4) Pre-filters and secondary filters used upstream of high-efficiency filters
(5) Synthetic fiber, glass fiber, and composite filter media assembled as finished filters
(6) Product development and performance optimization testing by air filter manufacturers
(7) Incoming inspection and batch quality control during filter production
(8) Performance comparison testing between domestic and imported air filter products
(9) Laboratory testing and verification by third-party testing organizations and research institutes
Standards
The General Ventilation Filter Test Stand is designed and manufactured in accordance with the following international and regional standards:
(1) ISO 16890 — Air filters for general ventilation — Determination of filtration performance
(2) EN 779 — Particulate air filters for general ventilation — Determination of the filtration performance (legacy standard)
(3) EN 1822 (pre-filter evaluation reference) — High efficiency air filters (EPA, HEPA and ULPA) — Basic testing principles
(4) ASHRAE 52.2 — Method of testing general ventilation air-cleaning devices for removal efficiency by particle size
(5) GB/T 14295 — Air filters for general ventilation (China National Standard)
(6) ISO 29464 — Cleaning of air in cleanrooms and associated controlled environments (supporting reference for test conditions)
Features
(1) Compact structure with small footprint, suitable for laboratory and factory environments
(2) Flexible fixture design to accommodate air filters of different dimensions and structures
(3) Automated airflow and test sequence control ensuring stable and repeatable test conditions
(4) Capability to measure initial resistance, pressure drop versus airflow, and particle filtration efficiency
(5) Integrated data acquisition and storage system supporting test report generation and printing
(6) Stable aerosol generation and particle counting for reliable efficiency measurement
Technical Parameters
| Parameter | Unit | Value |
|---|---|---|
| Adjustable Test Air Volume | m³/h | 500 – 3500 |
| Test Air Volume Error | % | ≤ ±3% |
| Resistance Detection Range | Pa | 0 – 500 |
| Resistance Test Repeatability | Pa | 0–100 Pa ≤ ±2 Pa; >100 Pa ≤ ±3% |
| Aerosol Substance | – | DEHS or KCl |
| Test Particle Size | µm | 0.3 |
FAQ
(1) What is this product?
The General Ventilation Filter Test Stand is a laboratory and production-level testing instrument used to measure the airflow resistance and particle filtration efficiency of air filters designed for general ventilation and HVAC systems.
(2) What is this product used for?
It is used to evaluate initial pressure drop, pressure drop versus airflow, and particle filtration efficiency of general ventilation air filters under controlled test conditions, supporting product development, quality control, and standards compliance.
(3) Why is this product important?
Accurate performance testing is essential to ensure that general ventilation filters meet international standards, maintain indoor air quality, and operate efficiently within HVAC systems. This test stand provides repeatable and traceable data required for certification, product comparison, and production control.
(4) What problems can this product solve for users?
It helps manufacturers and laboratories verify filter performance, detect quality deviations, compare different filter designs or materials, reduce product failure risks, and generate standardized test reports for internal control or external certification.
(5) What types of products can be tested with this system?
The system is suitable for panel filters, pleated filters, pre-filters, secondary filters, and general ventilation filters made from synthetic fiber, glass fiber, or composite media used in commercial, residential, and industrial HVAC systems.
(6) How is the product operated?
The operator installs the filter in the test fixture, sets the test airflow and parameters via the control system, and starts the automated test sequence. The system then performs airflow control, aerosol generation, particle counting, and pressure measurement, with test results automatically recorded and generated into test reports.
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