Ningxia farmer Liu Yanping has had to breathe with the help of an oxygen generator for the past three years.
Now 56, he used to work at a small brick kiln and the coal dust he inhaled over the years scarred his lungs, severely restricting the amount of air they could take in.
Three years ago, at a hospital in Yinchuan, the regional capital, he was diagnosed with pneumoconiosis, an incurable disease caused by long exposure to industrial dust.
It is the most serious and most common occupational…
Source: SCMP – China