Air filter System（ISO 16890/EN 779）
The Air Filter Test System is designed for the evaluation of general air filters according to international standards ISO 16890, EN 779, and ASHRAE 52.2. The system allows precise determination of filter efficiency, enabling classification and rating of filter media and complete filter units. Its rotatable and movable duct sections simplify sample installation while ensuring reproducible testing conditions.
Application
(1) Testing of general air filters for HVAC systems according to ISO 16890.
(2) Efficiency evaluation of commercial and industrial air filters according to EN 779.
(3) MERV classification of coarse and fine particle filters according to ASHRAE 52.2.
(4) Energy efficiency rating of air filters according to EUROVENT guidelines.
(5) Research and development of new air filter media and complete filter units.
(6) Quality control and production inspection of filter elements and assemblies.
Standards
(1) ISO 16890 – Air filters for general ventilation – Part 1–4.
(2) EN 779:2012 – Particulate air filters for general ventilation.
(3) ASHRAE 52.2:2008 – Method of testing general ventilation air-cleaning devices for removal efficiency by particle size.
Features
(1) Automated operation with full operator guidance for all tests.
(2) High reproducibility and accuracy for efficiency measurement.
(3) Rotatable and movable duct sections for easy sample installation.
(4) Universal filter holding system accommodating various sizes.
(5) Safety functions controlled via PLC.
(6) Energy efficiency rating and MERV filter classification capabilities.
(7) Flexible measurement for different aerosol types: DEHS, KCl, ISO 12103-1 A2/A4.
Parameters
| Parameter | Unit | Value |
|---|---|---|
| Test flow rate | m³/h | 600 … 6000 |
| Measuring range, differential pressure | Pa | max. 2000 |
| Compressed air supply | bar | max. 6 |
| Power supply | – | 3 × 400 VAC, 125 A, 50 Hz |
| Operating medium (aerosol substances) | – | DEHS, KCl, ISO 12103-1 A2/A4 |
| System dimensions (W × H × D) | mm | Customizable based on configuration |
| Weight | kg | Approx. 1000–1200 (depending on configuration) |
Test Procedures
(1) Install the air filter sample in the rotatable duct section using the universal filter holder.
(2) Introduce aerosol-laden air flow through the system.
(3) Measure the differential pressure across the filter and record particle concentration upstream and downstream.
(4) Determine fractional and overall filtration efficiency.
(5) Classify filters according to ISO 16890, EN 779, or ASHRAE 52.2.
(6) Generate automated test reports and analysis.
Maintenance Information
(1) Regular cleaning of duct sections and aerosol injection systems.
(2) Calibration of pressure sensors and particle measurement instruments.
(3) Check the integrity of the universal filter holder and moving parts.
(4) Inspect PLC safety functions and operational software.
(5) Replace worn or contaminated aerosol generators as needed.
FAQ
(1) What is this product?
– A test system for measuring efficiency and performance of general air filters.
(2) What is it used for?
– To determine particle removal efficiency, differential pressure, and classify filters according to international standards.
(3) What types of this product exist?
– Systems capable of ISO 16890, EN 779, and ASHRAE 52.2 testing with different flow rates and duct configurations.
(4) What industry problems does it solve?
– Provides standardized testing for HVAC filter efficiency, MERV classification, energy rating, and R&D of new filter media.
(5) How is it operated?
– Install filter samples, run automated aerosol tests, measure upstream/downstream particle concentrations, and analyze efficiency using integrated software.
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