The problem with respirators and 3M 95 masks and similar is that they filter the air INTO the lungs of the wearer
however, there is a one way check valve on the air exit
so if the wearer has is infected with coronavirus
such as minor symptoms
the exhaled air from the wearer will contain a plume of coronavirus particles.
Have we determined this thing can be aerosolized? That it can pass through the air with no snot or poo to carry it? I didn’t think that was the case. I thought you had to touch it and bring it to your mouth, or inhale spray coming from a cough or a sneeze.