Certificates
The Zest filters have the following certificates:

DIN EN 16 070
It confirms the use of the filter for purifying water from the water supply network.

TÜV SÜD
It certifies the quality of the filter matrix to reduce the presence of contaminants and harmful substances specified by the manufacturer.

Zest filters are safe for people and the environment.
Download the full technical data sheet, and you will find all the information regarding Zest’s ability to reduce harmful substances.