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Robert's point of view is the clearest message so far from the CDC amid fierce public debate about wearing masks in the United States. CDC currently recommends wearing a mask in public places. Many US states have also forced people to wear masks at those places. An analysis of the study published on July 26 in the journal BMJ medical journal said that the current wearing of mandatory masks is done in 160 countries to reduce COVID-19 infection. In fact, researchers around the world find that even wearing basic cloth masks can help prevent infection more effectively than not wearing anything. In the context of scarcity of N95 respirators, which are rated as the most preventable, but often preferred for health care workers, there has been research proving that the risk of infection is still significantly reduced with These masks are simple and cheaper than the N95. Although there is currently some evidence that respirators can be disinfected for reuse, they are not the perfect solution. "We really need to make sure there's enough supplies of masks for health workers," Cowling added. It is the lack of Personal Protective Equipment (PPE) such as the N95 respirator that has led some scientists to find ways to develop alternatives from materials that can be found in hospitals. Another problem with asking the public to wear a mask is the need to give instructions on how to wear it properly. If the mask is not worn properly, the closed area around the mouth and nose can still let the virus slip into the side. A mustache can also affect the effectiveness of a mask because it keeps the mask from closing.

The inner layer is always white, very easy to distinguish from the outer layer. The face of the cloth turns inwards, close to the skin of the face, so it must be pure and smooth, without fiber fibers causing discomfort. In addition, it must be waterproof to sweat to create comfort for the user. The middle layer prevents particles from splashing and must filter dust and bacteria. This is the layer that determines the quality of the mask. A "right" filter layer must allow air to pass easily, creating a sense of ventilation for users, but must have a structure sufficient to filter out particles of microscopic dust and bacteria.