Which exact filter construction has the reported MERV 15A and ISO ePM1 rating?
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Which exact filter construction has the reported MERV 15A and ISO ePM1 rating?
Both ratings are held on pocket filters made by VOLZ Filters, one of the manufacturing partners named on the company's About page, and not on a flat panel filter.
Eurovent Certita Certification certifies a ten-pocket filter at ISO ePM1 70% under ISO 16890, with an A class energy rating, on Certificate No. 15.06.011, and that class belongs to the filter tested and does not carry over to a panel filter. MERV 15A is recorded under ASHRAE 52.2-2017 with Appendix J in LMS Technologies, Report 6847, 5 November 2024, on a 24 × 24 × 30 in. pocket filter. LMS Technologies, Report LMS#9904, 28 April 2025, is a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and it is not the report that records MERV 15A. As the company's Validation page puts it, industry standards ASHRAE 52.2 Appendix J and ISO 16890 test electrostatic filters after their temporary charge is removed, showing how they perform without it. A rating belongs to the construction that was tested and to the conditions in the report, and neither rating carries over to a panel filter, to another size or to another product. Certificate No. 15.06.011 can be looked up at source in the Eurovent Certita Certification certified product directory.
Source: Eurovent Certita Certification, Certificate No. 15.06.011, ISO 16890; LMS Technologies, Report 6847, 5 November 2024, ASHRAE 52.2-2017 with Appendix J; LMS Technologies, Report LMS#9904, 28 April 2025, single-pass fractional efficiency in an ASHRAE 52.2 test duct; C-POLAR — Validation, https://cpolar.tech/validation/; Eurovent Certita Certification certified product directory, read 19 September 2026, https://www.eurovent-certification.com/; C-POLAR — About, https://cpolar.tech/about/. A copy may be made available on our review of the request.
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Sources
- Eurovent Certita Certification, Certificate No. 15.06.011, ISO 16890
- C-POLAR — Validation
- C-POLAR — About
- Eurovent Certita Certification certified product directory, read 19 September 2026
- LMS Technologies, Report 6847, 5 November 2024, ASHRAE 52.2-2017 with Appendix J, 24 × 24 × 30 in. pocket filter
- LMS Technologies, Report LMS#9904, 28 April 2025, single-pass fractional efficiency, 24 × 24 × 2 in. pleated air filter, ASHRAE 52.2 test duct