暗道里24小时都会流动着一种气压差，当垃圾桶有垃圾倒入时，气压差就会将垃圾桶里的这些垃圾吸进地下的暗道中，然后在气压的推动下，被统一输送到社区里的垃圾回收站，在那里被集中分类，然后按照不同的类型送出去；这样就避免了清洁工人每天都要到每个垃圾桶前清理垃圾的麻烦，既省时又卫生，并且容量无限大。
There is a pressure difference in the underground tunnel 24 hours. When the garbage can is dumped, the pressure difference will suck the garbage in the garbage can into the underground tunnel, and then, driven by the pressure, it will be uniformly transported to the garbage collection station in the community, where it will be centrally classified, and then sent out according to different types; thus, it avoids the daily arrival of cleaners. The trouble of cleaning up garbage in front of a garbage can is time-saving, hygienic and infinite in capacity.