This article is transferred from the public number Wei Xizhibei , author: Wei Xi I am the only one who is going to do this
In the cold early winter of 2020, masks have once again become the protagonist of this country. This little simple commodity has become a necessity for people to compete in disasters. So, what is the history of masks? How does it affect the evolution of human respiratory protection? Today Wei Xi takes you to find out:
I. Recording and exploration of masks before modern times
The history of human protection of the respiratory system can be traced back to ancient Roman times. In the first century AD, philosopher and naturalist Pliny (23-79 AD), he used loose animal bladder skin to cover his nose. To filter the dust so that this toxic mercury sulfide is not inhaled when cinnabar is crushed.
Pliny the philosopher and naturalist
Medical Western medical circles believed that infectious diseases such as cholera and black death were caused by “thallium gas” in the air, so in order to resist “thallium gas”, some doctors at the time would bring a bird when diagnosing respiratory diseases. Mouth masks, in which some spices and herbs will be placed; although they do not understand the principle, they do block the spread of the disease to a certain extent;