A very cheap fire extinguisher that seems to be an illusion of the eye

When I hear "fire extinguisher", I generally think of the picture like the one above, but I will introduce the photograph of the fire extinguisher installed in a certain bus running in Chengdu, China. It is a very dangerous question whether it really helps with a fire extinguisher with a pretty compelling feeling. Because it is very dirty, there is a possibility that it is not supposed to use it.

Images are from the following.
After injury of self - incarceration incident, Chengdu Public fire fighter ___ _



I entered from the entrance and looked at the feet ......


Discovered what seems to be a fire extinguisher. We also have preliminary items.


Do you think that the preliminary items written as "Coca Cola" are used?


It may just be after the real fire extinguisher has been stolen, but in Chengdu, China seems to see such a bus from time to time.