Hacker News Reader

I think we should find a better way to heat ourselves without burning coal, because this air purifier will reach a limit in the future and we will be back on step one.

To reduce air pollution the Chinese government forbad heating with coal in some regions and installed gas pipes there. It turned out they severely underestimated the spike in demand in winter and the rising gas prices. Residents illegally switched back to coal heating because heating with gas was 2-3x more expensive. Later, the government officially sanctioned coal heating for the time being. So the Chinese government tries to get away from coal but it’s not as easy.

Those filters must be epic in size.

maybe they can just shower them with water?