Dr. Fauci believes that you need to wear two masks from Covid-19
As Fauci explained in an interview with NBC, the mask is a physical covering, which prevents the penetration of viral particles, and if you have a physical coat with one coat and apply a second coat, it, probably, will be more efficient.
Expected, that when worn correctly, the face mask will prevent the spread of the respiratory virus, regardless of its load.
More protective masks from Covid-19
If you wear three or more masks, then they will filter better, because there are more layers of fabric.
But this is very inconvenient, so hardly anyone will do it.
According to Segal, who has studied the effectiveness of various protective fabrics for masks over the past year, three-layer surgical medical masks, usually, provide better protection.
Topics, who chooses fabric masks, he recommends a mask, in two layers with high quality cotton fabric and lots of threads.
Opinion from the Centers for Disease Control and Prevention
According to the Centers for Disease Control and Prevention, маска N95 – золотой стандарт защиты – не рекомендуется для широкой публики, but should be intended for healthcare professionals.
Простой способ проверить эффективность листовой маски в домашних условиях – подержать ее на свету. If light is transmitted, means, virus particles will pass too.
Regardless of the type of mask used, it is important to wear it correctly. According to an expert from Duke University, лучшая маска – это та, which you will wear correctly the longest when communicating with other people. The face should be covered from the tip of the nose to the chin with no gaps on the sides.