Japanese Covid-19 Microdroplets Study

 


The researchers simulated a situation with 10 people in an enclosed space – the size of an average school classroom. When someone coughed, as expected, the larger droplets fell to the ground within one minute.

Microdroplets stay in the air for longer in closed spaces.
How far can microdroplets spread in 10 minutes?
But 20 minutes after the cough, the microdroplets were still floating in the air – and had spread through the entire room.

However, when a window was opened, the microdroplets were quickly swept away in the breeze. Any airflow, it seems, will get rid of the super-light particles.

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