Surgical masks prevent aerosols expelled by the user from reaching the environment. Surgical Masks protect us from drops and splashes of large particles that may contain viruses and bacteria and reach our body. As its name suggests, surgical masks are used in clinical environments to prevent patients from transmitting infections or to prevent contagion to patient. Therefore, surgical masks are perfect to protect us in times of pandemic. The reason is that they allow us to filter the exhaled air, protecting us from viral dispersion when sneezing, coughing or simply speaking.