The actual science is that the virus is smaller than the pores of the fabric of the masks. So yes it would make sense in theory to use 2+ masks to make up for this fact, but you then increase the possibility of bacterial pneumonia in the wearer. Plus, masks are completely unnecessary if you are healthy. We need to be exposed to germs to have properly functioning immune systems. Cough into your elbow, wash your hands after touching surfaces that others touch, and stay home if you feel sick. BOOM. There is some science for you, just like there are two genders.

u/#Mikeyep