▲ Coronavirus seen with an electron microscope
Analysis suggests that ventilation is important to prevent getting caught in Corona19.
As a result of computer simulations by Associate Professor Yamasawa Masashi, Kyoto Institute of Technology and Textiles (Statistics and Fluid Engineering), large particles fall to the floor soon after a patient coughs in an almost enclosed space. It was done, Asahi Shimbun reported on the 3rd.
According to reports, relatively large particles up to 2 mm (millimeters) in body fluids from cough fall to the bottom within 1 minute, but the particles of 0.004 to 0.008 mm are calculated to float in the air without falling after 20 minutes.
According to the simulation results of Associate Professor Yamakawa, it seems that in a poorly ventilated area, there is a possibility that microscopic droplets containing the virus from the corona19 confirmatory body are suspended in the air and then spread to others.
"It is thought that the large droplets such as sneezing will soon fall, but fine particles will float in the air for a while," said Associate Professor Kenichi Azuma of Kinki University (hygiene).
The World Health Organization (WHO) has also pointed out the possibility of infection of the Corona19 virus by aerosols.
A meeting of Japanese government experts responding to Corona 19 suggested that "if possible, open two-way windows at the same time to ventilate".
"It makes sense to open a window in two directions to let clean air flow out," said Professor Yamakawa. He said that frequent ventilation helps prevent infection.
(Photo = Yonhap News)