All components involved in filtration are NSF® certified. Our Ultimate Star Filter® is itself NSF® certified. And we are one of the only manufacturers of activated carbon-based gravity water filters to obtain this certification.

The main reason for this rarity is that NSF® certification requires not only a study of all the filter components, but also laboratory analyses following a very specific protocol, and last but not least, certification of the production site. These operations take a very long time, require a great deal of preliminary work and are very costly. In addition to the fact that most filters simply couldn't pass NSF® certification due to lack of efficiency, the time and money involved in obtaining this certification puts many brands off. That's why we're all the more proud to have obtained this certification!

Beware of the many brands that display an NSF® logo, even though this often relates to only one component of the filter, or sometimes refers to a product that has nothing to do with it...

In this case, NSF® certification alone is not a guarantee of quality. It only provides certain guarantees about the protocol used for the analyses.

It is also important to look carefully at the results of the analyses provided and the way in which they were carried out (standards used, pollutant concentrations, etc.).

Our analyses, on the other hand, were carried out according to the rules, in compliance with the standards and concentrations.

As a further guarantee of safety, our filter complies with European REACH regulations, proving that no hazardous materials are used in our filter.