Coronavirus spreads from person to person, usually when someone comes into contact with the secretions of an infected person.The infectivity of the virus directly affects the route of transmission.At present the popular novel coronavirus transmission is the transmission of droplets, wearing a mask can effectively block the transmission of virus.Mask is an important line of defense against respiratory infections and can reduce the risk of novel coronavirus infection.Not only does the mask prevent the patient from spraying, slowing down the volume and speed of the spray, but it also blocks the core of the droplets that contain the virus, preventing the wearer from inhaling them.
The lungs normally contain about a litre of fluid, which they spray out every time they sneeze, like squeezed mineral water bottles.Once outside the body, they break down into more than 40,000 small droplets, each containing a host of viruses and bacteria.These liquids can travel at speeds of up to 35 meters per second and travel distances of 3 to 8 meters due to the enormous thrust inside them.Now, this is a little bit more intuitive.