Just like the COVID vaccines, use of masks (instead of respirators) to block transmission of a virus was only authorized as experimental use. As such, according to law, it must be optional. If we are going to passively allow governors and governments to make this medical device mandatory, what is to stop them from making the vaccine mandatory?As I've mentioned before, both the FDA and OSHA have made it clear over the years that only respirators, not masks, are considered valid PPE to block transmission of a respiratory virus. Which is why mask manufacturers must continue to place a disclaimer...