If possible, wear a surgical mask (aka one of the disposable masks usually made of blue paper) as your first layer, then add a cloth mask on top, Dr. Subramanian said. That's because the cloth mask ...
Home-made cloth face masks likely need a minimum of two layers, and preferably three, to prevent the dispersal of viral droplets from the nose and mouth that are associated with the spread of COVID-19 ...
Seen any photos of the great and good – including US Vice President-elect Kamala Harris and everyone's favourite 'zero tolerance on breaking social distancing rules' actor, Tom Cruise – layering two ...