Even if masks work, the flimsy, non-medical black mask the reporter was wearing could not possibly be effective. But how come the mask (and the reporter’s clothes) changed colors at the end of the clip?
“But how come the mask (and the reporters clothes) changed colors at the end of the clip?”
Because she made it out of an old HyperColor t-shirt from the 1980’s.
Old clip
Not from the same press conference
she was wearing a mask as she asked the question, but as soon as the briefing ended she removed the mask
That statement is not true, as we can see. The reporter who removes her mask is wearing different clothes and a different mask.
Either that's a different reporter, or it's the same reporter at a different briefing.