Mobile Negative Pressure Toilet
The mobile negative pressure toilet is a mobile public toilet that utilizes vacuum negative pressure technology, offering water-saving and efficient sewage discharge capabilities, suitable for scenic spots, commercial plazas, and other settings.

Technical Principles and Core Features
The core technology of the mobile negative pressure toilet is the vacuum negative pressure system, which uses a high-strength closed pipe network and pneumatic conveyance to transport waste, replacing traditional hydraulic flushing methods. This technology originates from the mature sanitation systems used in high-speed trains and airplanes, adapted into an independent system through “terrestrial” modifications.
1. Extreme Water Conservation
This technology achieves efficient toilet flushing through vacuum suction, requiring only 0.5-1.5 liters of water per flush, with some models needing only a small amount of water to moisten anti-adhesive membranes. Compared to traditional toilets (which use 6-10 liters per flush), this results in a 70%-90% reduction in water consumption, significantly lowering water resource usage.
2. Source Odor Control and Hygiene Assurance
The system employs a “high-speed instantaneous sealed transport + closed pipeline storage and treatment” model, where waste is immediately vacuum-sucked and sealed upon generation, preventing odor diffusion. The closed pipe network design greatly reduces the risk of cross-infection from diseases, significantly lowering the probability of microbial exposure, making it especially suitable for high-traffic scenarios.
3. Strong Environmental Adaptability
Traditional toilets rely on hydraulic gradients or gravity flow for sewage discharge, whereas the vacuum negative pressure system uses pneumatic conveyance, eliminating the need to consider terrain slopes. Its pipe network can be designed with longer horizontal runs (e.g., over 100 meters) and vertical climbs (e.g., over 10 meters), adapting to complex terrains such as mountainous areas and underground spaces, expanding installation options.
Application Scenarios and Product Examples
The vacuum negative pressure mobile toilet introduced by Sichuan Gerunsi Environmental Protection Equipment Co., Ltd. is priced starting at ¥10,000, with a minimum order quantity of 1 square meter, and supports customized installation services. This product, featuring mobility and ease of cleaning, has been widely applied in scenic spots, commercial plazas, residential communities, and other settings. Additionally, the negative pressure drainage technology water-saving toilet developed by Shanghai Huajie Ecological Environment Engineering Co., Ltd. in 2015 further validates the market feasibility of this technology.
Conclusion
The mobile negative pressure toilet achieves breakthroughs in water conservation, odor control, and environmental adaptability through vacuum negative pressure technology, providing an efficient solution for public toilet construction. Its modular design and low maintenance costs make it an ideal choice for outdoor events, temporary venues, and water-scarce regions.




