Oh folks... time to break the news to the masses. The silly medical masks that people have been photographed wearing are NOT FOR YOUR PROTECTION. They don't filter virus / bacteria grade particles. You need some serious filtering capabilities for those masks.
These masks are geared to protect others around you .. so, when you sneeze, you don't sneeze on them.
Next time I see someone wearing the mask, I'm going to beat them with a clue stick!