Mobile Toilet Intelligent Odor Removal System
The mobile toilet intelligent odor removal system achieves efficient odor control through the collaborative application of multiple technologies, becoming a core direction for refined management of public toilets. Its technical principles and application scenarios can be summarized as follows:

1. Intelligent Sensing and Dynamic Regulation Technology
The system uses high-precision sensors to monitor the concentrations of odor gases such as ammonia and hydrogen sulfide in real time. When the concentration exceeds a preset threshold, it automatically triggers fans or spray devices. For example, the “Smart Micro-Water Flush” public toilet piloted in Beijing's Sub-Center employs a low-level exhaust system combined with efficient bacterial agents to decompose odor sources, achieving a closed-loop control of “monitoring-response-treatment”. Some systems also integrate temperature and humidity sensors to dynamically adjust odor removal intensity based on environmental conditions, avoiding energy waste.
2. Aerodynamic Optimization Design
Given the large molecular weight and tendency to settle of odor gases, low-level exhaust technology has become a mainstream solution. By introducing fresh air from the top and discharging polluted air from the bottom in a circulating pattern, a directional airflow field is formed, effectively preventing odor diffusion. The Ceba Smart Public Toilet System further innovates with a dual-cycle mode: daytime external circulation with wall-mounted units for auxiliary purification, and nighttime internal circulation operating independently to ensure 24-hour air quality compliance.
3. Physical Isolation and Mechanical Sealing Technology
The toilet fixture's water seal device incorporates an odor isolation valve that opens and closes automatically using water pressure. During use, the valve opens with the water flow and closes immediately after flushing, physically blocking odor backflow. Some high-end systems also adopt magnetic sealing structures to further enhance airtightness, reducing odor leakage by over 90%.
4. Policy-Driven Large-Scale Application
The state has explicitly required that by 2027, smart public toilets should cover 80% of cities at the prefecture level and above, and 50% of county-level cities. Against this backdrop, over 10,000 public toilets nationwide have been renovated, with intelligent odor removal systems becoming standard equipment. The smart toilet system developed by Deyi Environment has been promoted nationwide, with its sensor network capable of simultaneously monitoring odor, foot traffic, energy consumption, and other data, enabling remote management through an IoT platform.
5. Comprehensive All-Scenario Solutions
Modern systems break through single odor removal functions, integrating modules such as toilet occupancy sensing, queue warning, and energy consumption monitoring. For example, the Ceba system designs dedicated odor removal and sterilization equipment for men's urinals, automatically initiating cleaning within 3 seconds after use, combined with a UV disinfection module to simultaneously reduce odor and bacterial concentrations by over 85%, significantly enhancing user experience.




