The mumbo-jumbo about sums it up.
Even the top of the range anti viral screens have to be changed every couple of hours. As soon as they get moist they become useless.
Any box is going to store the crap up. If your looking for asbestos/industrial usage then a face mask is more than sufficient. But you have to have a filter for what you want to stop.
reminds me of Helsinki when the Asian flights come in. Hundreds of masked people streaming through the terminal. Some of them have a box round there neck as well so if your travelling by Finair I suspect you won't have a problem.
The whole thing smacks of Michael Jackson theory's on life prolonging.