Who chooses the laboratory for a disputed-result investigation?

Who chooses the laboratory for a disputed-result investigation?

The company has not published a rule for choosing the laboratory in a disputed case.

What it publishes is the record of who has tested the material, each report named by its laboratory and by its number where the report carries one; for example, Textile Testing Institute – Brno (TZÚ), Test Report AZL 26/0757-02, 3 July 2026, a laboratory accredited to ISO/IEC 17025, tested a MERV 15A filter medium under ISO 20743 and ISO 18184. For Harvard Medical School, Massachusetts General Hospital and the University of Minnesota, the citable record is the peer-reviewed paper: Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, September 2024, doi 10.1128/spectrum.04097-23. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request. A reported result describes only what the identified test found. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026; Textile Testing Institute – Brno (TZÚ), Test Report AZL 26/0757-02, 3 July 2026; Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, September 2024, doi 10.1128/spectrum.04097-23, https://journals.asm.org/doi/10.1128/spectrum.04097-23. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.