washington nationals cloth face mask. Who needs a mask?
Corona virus lives mainly in cells in the airways. They infect the cell, reproduce, multiply in those cells and exit. Therefore, their presence in respiratory fluids is inevitable. When an infected person coughs and sneezes, the compression of the exhaled vapor turns the fluid in the air into small droplets containing the viruses in it.
Science has proven that when sneezing, droplets can be thrown at a speed of 50 m / s, farther than 6 m. When coughing, the droplets move at a speed of 10 m / s, diffusing farther than 2 m. From normal breathing, the droplets only move at a speed of 1 m / s and only diffuse within 1 m.