Excellent advice - says who?

We all wear them almost every day at the moment: FFP2 masks. We rely on their safe protection. But what gives us this security? On the one hand, a correct way of wearing, which is up to us. But other criterias are important, too. For example, only CE-certified FFP2 masks guarantee that the safety and health requirements are met throughout the EU. And the TÜV checks again and certifies. So we rely on seals that are ascribed a high level of credibility through independent testing and trust that they are safe.