The "CE" mark is a safety certification mark that is regarded as a passport for manufacturers to open and enter the European market. CE stands for CONFORMITE EUROPEENNE. All products with the "CE" mark can be sold in each EU member state without having to meet the requirements of each member state, thus achieving the free circulation of goods within the EU member states.

In the EU market, the "CE" mark is a compulsory certification mark. Whether it is a product produced by an enterprise within the EU or a product produced in other countries, if it wants to circulate freely in the EU market, it must be affixed with " CE" mark to indicate that the product complies with the basic requirements of the EU's "New Approach to Technical Coordination and Standardization" directive. This is a mandatory requirement imposed by EU law on products.

Toilets exported to the EU must provide CE certification.