Coronavirus: medical masks best, cotton good, bandanas bad, study shows

Health experts have determined that face coverings are a vital tool in reducing the spread of Covid-19 – but little research has been done into how different kinds of masks compare.A new study has ranked 14 types of commonly available mask, finding that medical masks offer significantly more protection against droplet spread than cotton alternatives – while bandanas and balaclavas do not do much at all.The findings have public policy implications, particularly in the United States where…

Read the original article at South China Morning Post