Another lifesaver is born

I don't know whether it is a kind of sadness or happiness? Human beings are greedy. If they know that water can be drunk even if it is polluted, the water will be in trouble again. If water gets into trouble, then artificial cultivation will be the only way to eat our favorite fish. Anyway, we do not know. I am afraid that with the development of science and technology in the future, there will be some big guys who can clean up the river water extraordinarily cleanly.

This kettle can filter bacteria or water contaminated by feces and viruses. I don't know how well it filters poison. Senior people who are afraid of being drugged by others can try it, although this is the route shown on TV.