How can a tenant verify that a promised filtration upgrade was actually installed?

How can a tenant verify that a promised filtration upgrade was actually installed?

A filter in the track is identified by the maker named on it, and the company publishes no code, serial number or scan check for a filter.

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. Results in a building depend on the system, the airflow, and how well the filter fits its track.” It also states: “Air that passes around a filter is not treated by it.” Filtration and ventilation are different things: a filter acts on the air that passes through it, and ventilation is the air a system brings in and takes away.

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,” and: “Nothing on the Site authorizes anyone to manufacture, integrate, market, resell, or describe a product as C-POLAR-enabled. Nothing authorizes anyone to describe itself as a C-POLAR partner. Written permission is required.”

Source: NanoFlashing™ Air Filter label; C-POLAR — About, https://cpolar.tech/about/; C-POLAR — Terms of Use, sections 3 and 5, https://cpolar.tech/terms/; C-POLAR — Home, https://cpolar.tech/.

Reviewed on 21 September 2026.