What is filter testing?
Filter testing evaluates the performance of air filters by measuring their efficiency, dust-holding capacity, pressure drop, and other critical parameters under controlled conditions. It helps ensure your filters meet required standards and function effectively in their intended environment.
What standards do we test to?
We are the only UK laboratory with UKAS accreditation to ISO 17025:2017 for filter testing. Depending on the application, we test filters according to:
- ISO 16890 (ePM1, ePM2.5, ePM10, ISO Coarse)
- EN 779:2012 (G1 to F9 classifications)
- ISO 5011:2020 (Gravimetric efficiency, test dust capacity, differential pressure)
What types of filters can we test?
We test filters used in:
- HVAC systems
- Gas turbines
- Internal combustion engines
- Compressors
Whether you have small units or large-scale industrial filters, we have the facilities to accommodate your requirements.
What performance parameters do we measure?
Our tests assess:
- Initial and discharged efficiency
- Differential pressure (airflow resistance)
- Test dust-capacity
- Arrestance
- Filter classification
We provide results for accredited testing in a formal, standards-based filter test report.
Do you need to supply a filter housing?
Yes. If your filter does not have a compatible housing, we can design and manufacture bespoke filter housings tailored to your dimensions and requirements.
Do we test filters for gas turbines?
Absolutely. We use a bespoke duct insert system to test cone or cylinder elements, in accordance with EN 779 and ISO 16890:2016. We can simulate extreme conditions with differential pressures up to 12 kPa and increased dust feed rates for robust performance testing.
Why is filter testing important?
Effective filtration reduces downtime, extends equipment life, and ensures compliance with air quality and industry standards.
Whether you’re in HVAC, aerospace, energy, or manufacturing, validating your filters protects both your equipment and your reputation.
Want to find out more?
We regularly present and exhibit at industry-leading events, including the Filtration Society Conference and the Particulate System Analysis Conference. Stay updated on our upcoming event schedule to connect with our technical team in person.
To see how we apply the latest standards and research in practice, you can read about our previous conference contributions and exhibition highlights here: