many face masks are simply face coverings porous enough to let the Covid 19 virus through with ease. Even the well know N95 filter can allow some viruses through with openings up to 3 microns as the Covid 19 virus can be less than 3 microns.  Masks should be only voluntary not government mandated as further intrusion on our personal freedom. It seems there are forces within government using this Covid-19 issue as an excuse to goin more control over our lives. Not cool!