| 摘要 |
The present invention provides a ventilated toilet system with a fan that continuously extracts waste air from the toilet bowl when the toilet is being used. An air passage leads from the toilet bowl to the fan, and the fan pushes the extracted air down another air passage to the toilet's water discharge path. The fan can be manually operated or can be activated by a sensor that detects the presence of a person. To ease installation, the air passages can be formed integrally with the toilet bowl. A check valve, in some embodiments, prevents the back flow of odors from a sewer line. The fan, its power source, and its controller, can be made into a modular unit made to fit any of a number of toilet fixtures.
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