the most infectious of the viruses. really begging that we have to wear these much higher levels of infection. so just mandating a mask to me has never been an important public health element. it is about are we also mandating the fact they're using high quality, true respiratory infection masks. >> what about the disconnect between bars and restaurants? you don't have to do masks anymore, arenas for concerts, but schools still do it. >> there is been an inconsistent plant. we need a better plan for what we mean by better masking and why. we've created our own problems by forcing masking in a way that was not always that protective on the public. an n-95 respirator, the kind that you can readily buy at any hardware store, can be highly effective in reducing risk of getting infected or transmitting the virus bust we have not