It looks like a "k95-kn95" which if it is, it filters 95%. I may be batty, but I feel the masks will only help those who are ill, keep their microbes (95%ish anyways) to themselves.Come to think of it is that even a medical mask? That looks like the kind of mask you use when doing wood work and shit like that. It doesn't look like any medical mask i've seen
Just based on how it looks anyways. Maybe where he was at the hospital the night before, he swiped/was gifted one?