With this virus living for weeks, how is it that overnight in a paper towel gets them healthy? Never mind him moving the mask in the air as he's taking it off and sending virus particles flying. By the time he's wrapped the mask up and then opened it, one would imagine there are particles on the face side of it.
marker
You take it off in a safe area. Drying it means that your breath does not become moisture, which allows the virus to seep through the mask.
I would certain leave it under UV lights overnight. Just make sure.