The media and social networks are full these days of opinions from people against the use of masks and public movements (including public demonstrations and protests) against the measures to fight the COVID-19 pandemic.
Many of these views are based on false myths and beliefs about face masks, which, until vaccines appear, are the most effective means of containing the spread of the virus at this time. Here are some of them and the explanation for their falsehood.
Only those who are afraid of getting sick should wear a mask
Facemasks work by blocking potentially contagious respiratory particles from flying into the surrounding air every time we cough, sneeze, breathe, or talk. They can also keep us from breathing in some particles expelled by others.
According to the latest research, the most effective scenario for reducing coronavirus infection is one in which everyone wears a mask.
In a recent study by the CDC (Centers for Disease Control and Prevention), it was shown that wearing a mask helped stop an outbreak at a hair salon in Missouri. Although two employees were asymptomatic carriers of the virus, not a single one of the 139 customers became ill, as both customers and hairdressers wore masks.
The fabric mask does not protect
Today, the WHO recommends to the general population the use of hygienic cloth masks when it is not possible to maintain a minimum distance of one meter, such as in public transport, stores and other closed or crowded places. According to WHO, “such masks can act as a barrier to prevent people wearing them from spreading the virus to others when there are many cases of COVID-19″.
What we have seen is that fabric masks have a lower level of protection than medical masks and FFP2.
Wearing a mask makes a coronavirus infection worse
In the documentary Plandemic it is said that if you have the virus, wearing the mask will expose that person again to the exhaled viral particles, making the disease worse.
So far, research points out that a person cannot be reinfected by having the virus. Therefore, wearing a mask will not make coronavirus infection worse.
More and more evidence suggests that once the body builds an immune response to COVID-19, it is protected (for some time) from reinfection. However, re-infection is occurring, such as in Hong Kong.
The mask causes a lack of oxygen in the blood
Masks can generate a sensation of suffocation, but there is no evidence that their use produces hypoxia, acidification of the body or intoxication by inhalation of the CO2 itself.
The masks are not closed to the passage of air since the material they are made of retains the particles in suspension but, as shown by all the measurements taken with oxygen meters, allows oxygen to enter and carbon dioxide to be eliminated.
Regarding the statement that practicing any physical activity with a mask seriously enhances its harmful effects, since the whole mouth and nose are covered, there is a mechanical limitation of the usual air intake, so when doing sports it can become uncomfortable and reduce the performance during physical exercise.
The use of a mask favors the appearance of respiratory infections
The mask does not cause fungus or respiratory infections when used correctly. Both the WHO and U.S. CDC emphasize that disposable masks should be used only once and that reusable masks should be cleaned and disinfected after each use.