Why do we need a face mask?

Why do we need a face mask

Coronavirus is transmitted between people, usually when someone is exposed to the secretions of the infected person. The transmission of the virus directly affects the transmission route. The current route of transmission of the new coronavirus is unclear, but past experience has shown that exposure to the body fluid that the infected person coughs or sprays, or shaking hands with the infected person lead to infection. If your hand touches something that the infected person has touched and then touches your own mouth, nose or eyes, it may also infect the virus.

Normally, people have about a liter of fluid in their lungs, which, each time they sneeze, spray like a squeezed water bottle. In vitro, they are divided into more than 40,000 droplets, each containing a large number of viruses and bacteria. Because of the huge thrust in the body, the velocity of these liquids can be as high as 35 m / s, and the propagation distance can reach 3~8 m. 

o be sure to wear a mask! Even if you are exposed to an infected person, wearing a mask can prevent you from inhaling the virus directly from the droplets.

Wash your hands! Even if the virus is left in hand, hand washing can block the virus through the hand into the body.

 

In 2003, SARS was so horrifying because the speed at which it was transmitted through droplets was beyond control, with the south-east asian flu on monday, south-south china next monday and the whole country next monday.

So be sure to wear a mask! Even if you are exposed to an infected person, wearing a mask can prevent you from inhaling the virus directly from the droplets.

Wash your hands! Even if the virus is left in hand, hand washing can block the virus through the hand into the body.

 

What's the difference between KN95 and N95? 

N95 mask actually is a kind of respirator, a kind of respiratory protection equipment, which is designed to fit the face more tightly than the ordinary mask, and can filter the particles in the air very effectively. The character "N" indicates that it can be used to protect non-oil suspended particles; 95 means that the filtration efficiency is greater than or equal to 95%, indicating that after careful testing, this respirator can block at least 95% of very small (0.3 micron level) test particles.

By design, if ranked according to the priority of the wearer`s own protective ability (from high to low): N95 masks > surgical masks > ordinary medical masks, ordinary cotton masks.

 

What's the difference between N95, KN95 and KF94?

In summary, They are basically all the same. They stop 95% of particles >0.3 microns in size. The N95 is the USA Code, KN95 is China code, KF94 is Korea code and FFP2 is the EU code, this includes the UK.

KN95, KF95 and FFP2 face masks are N95 face mask alternatives & N95 equivalents. They are all the same.

Can wearing a normal medical face mask protect you from Corona Virus?

A regular loose fitting face mask will not prevent the Covid-19 virus. They can help you stop spreading sneezes, coughs and fluids to other people. This is how the corona virus spreads. People wearing face masks should disposed of them after every use.

 

Yes, respiratory face masks (they fit tightly around your nose and mouth) , commonly know as N95 face masks can protect against the virus if you wear and use them correctly. You need to fit them correctly so they are tight to face.

These masks are thicker than a normal medical mask. However, they need to be fitted properly, and they are not designed to be used for a long period. 30 minutes is an average time to wear. Some users will have trouble breathing. You can't wear N95, KN95 and FFP2 masks if you have a beard.