[ad_1] Among the many types of masks in use, such as cloth masks, surgical masks, and N95 masks, the study states that only the latter can filter aerosol-sized droplets. The use of face masks to help slow the spread of COVID-19 has been widely recommended by healthcare professionals. Face masks …
Read More »Covid-19 pandemic can be stopped if 70% of the public constantly wear masks: study, world news
