1. Scientific guidance on whether the lay public should wear a face mask is rapidly evolving during the Covid 19 pandemic.
2. Medical masks MUST be reserved for the front line of medical workers; they protect the wearer from getting infected.
3. Homemade masks prevent the rest of us from giving the infection, and from using up the supply of medical masks.
4. Masks are not a replacement for physical distancing. Stay home, frequently wash your hands for 20 sec with soap and water, stay at least 6 feet apart.