Chongqing Mobile Toilet Upgrade and Renovation
Chongqing has been advancing the upgrade and renovation of mobile toilets through multiple measures, including accelerating construction speed, improving public toilet quality, applying technological innovations, and implementing supporting projects in old residential areas.

Significant Acceleration in Construction Speed
Intelligent modular public toilets have emerged in Chongqing. These toilets are industrially produced and tested on assembly lines in factories, with a production cycle of approximately 45 days. After production and testing, they are transported to the site, where they can be put into use immediately after being hoisted into place and connected to water and electricity. The on-site construction period can be as short as one day. In contrast, the on-site construction period for conventional public toilets is around three months. Intelligent modular public toilets have significantly shortened construction time and improved construction efficiency.
Remarkable Achievements in Public Toilet Quality Improvement
On the one hand, efforts have been made to actively renovate and upgrade urban public toilets. For example, the Yanyu Road public toilet in Nan'an District, as the first tidal public toilet in Chongqing, applies Internet of Things technology to automatically optimize the ratio of male to female toilet stalls based on the volume of toilet users. Nowadays, there are more and more tidal public toilets, effectively alleviating the problem of difficulty in finding toilets at different times and for different genders. On the other hand, attention has been paid to convenient service functions, and supporting facilities have been built in qualified public toilets, enhancing the user experience and the level of public services provided by public toilets.
Technological Innovation Driving Upgrades
Mobile environmental protection toilet manufacturing enterprises in Chongqing have upgraded traditional public toilets into movable, zero-pollution green facilities through technological innovation. Their technological approaches mainly fall into two categories: microbial degradation technology and vacuum adsorption and circulation systems. The products are characterized by mobility and rapid deployment. They are designed with lightweight materials and standardized designs, and can be transported by hoisting or trailers to remote mountainous areas, disaster sites, and other areas without infrastructure, with installation completed within two hours. At the same time, they are energy-efficient, with some models equipped with rainwater collection devices, driving technological upgrades across the entire industry. The products are widely used in fields such as rural revitalization and the integration of culture and tourism.
Advancement of Supporting Projects in Old Residential Areas
In 2025, Yuzhong District in Chongqing launched a supporting mobile public toilet project for old residential areas. Five existing mobile public toilets were demolished and replaced, equipped with corresponding toilet stalls, sinks, management rooms, tool rooms, and other facilities. The project had an estimated investment of 1.3026 million yuan and a construction period of three months, further improving the public toilet conditions in old residential areas.




