Wearing a face mask can reduce your risk of severe Covid-19: Humidity inside coverings limits the spread of the virus to the lungs leading to milder infection, study shows
NIH researchers assessed humidity of a space before and after wearing a mask. Masks increase humidity by between 38 and 90 per cent compared to maskless. This leads to hydrated air being inhaled by the person wearing the mask. This helps the respiratory tract to clear out the virus in the mucus and prevent it reaching the lungs
Daily Mail - February 15, 2021View the full story here: https://www.dailymail.co.uk/sciencetech/article-9261669/Wearing-face-mask-reduce-risk-SEVERE-Covid-19.html