Wearing a facemask while swimming? And I though wearing a mask while driving your car solo was the height of idiocy.
Getting a mask wet compromises any effectiveness it would have due to the moisture allowing for capillary action. Plus doesn’t chlorine in a pool kill germs? Not perfectly, as when some stupid person or kid defecates in the pool it’s everyone out of the pool, but still, it’s been legally ruled that pool chlorine makes you safe from blood borne viruses including in the case of Greg Louganis, the Olympic Diver with HIV.