msukiwi:
Hopefully the person near the wearer has a mask also. Therefore is it a problem?
Yes, because the point of the fabric type masks is to capture moisture before it spreads. Once it spreads, it will happily settle on the outside of another fabric mask, leading to contamination. Unless the mask has an airtight seal around the nose and mouth, as well as having a filter to the correct spec, then it is there to protect others, not the wearer. So, if it lets unfiltered breath out, then it is offering no protection to those nearby, and shouldn't really be used.



