Can a product claim distinguish limiting contamination of the filter from protecting its users?

Can a product claim distinguish limiting contamination of the filter from protecting its users?

Yes: the company's claim that the filter is intended to destroy the viruses, bacteria and fungal spores it captures is a claim about what happens on the filter, and C-POLAR has published no clinical study, and no laboratory result it publishes has been shown to produce a real-world health outcome.

The core science is peer-reviewed and published: Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, co-authored by 31 scientists from 18 research institutions. The company's position is that the filter is intended to destroy the viruses, bacteria and fungal spores it captures, and that it destroys them on direct contact with the positive electric charge, by physical means, and only while the organism is captured by the positive electric charge. The label for the NanoFlashing™ Air Filter states: “This filter treats the air that passes through it. It is not a medical device and is not intended to diagnose, treat, cure or prevent disease. It works alongside ventilation and cleaning, not in place of them.” The Terms of Use state: “A laboratory reduction in a virus, bacterium, fungus, particle, or other endpoint does not establish a clinical benefit, fewer infections, disease prevention or treatment, or improved health.” The paper reports laboratory results on SARS-CoV-2 in contact with treated textile, on aerosolised bovine coronavirus passed through a test filter in a wind tunnel, and on bacterial viability on treated textiles; each result belongs to the article that was tested.

Source: C-POLAR — Terms of Use (https://cpolar.tech/terms/); NanoFlashing™ Air Filter label, and Statement of Classification for the NanoFlashing™ Air Filter, NF Technical Products Inc.; C-POLAR — Validation, https://cpolar.tech/validation/; Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, https://journals.asm.org/doi/10.1128/spectrum.04097-23.

Reviewed on 21 September 2026.