What is CE certification for masks?
The "CE" mark in the EU market is a mandatory certification mark. Whether it is a product produced by an enterprise within the EU or a product produced by another country, if it is to be circulated freely in the EU market, it must be affixed with the "CE" mark to indicate that the product Comply with the basic requirements of the EU "Technical Coordination and Standardization New Method" directive. This is a mandatory requirement imposed on products by EU law.
The CE mark is not a quality mark. It is a mark representing that the product has complied with European safety / health / environmental protection / sanitation standards and directives. All products sold in the EU must be marked with the CE mark.