Toilet revolution is also a global topic. According to the World Toilet Organization, there are 2.4 billion people in the world who do not have toilets or live in environments with poor toilet hygiene.

This has caused a large number of diseases in some countries as the direct sewage pollutes soil, food and water. As an important measure of the tourist services, toilets are sometimes regarded as the key to a country's reputation and investment confidence. The Singapore Public Toilet Association believes that the total amount of time a person spends in the toilet in his or her entire life is more than three years, so that the toilet is vital to both individuals and a country.