Masks that are dirty, wet or have been worn by another person are not recommended either. In terms of face shields, Mora doesn't believe they're absolutely necessary for travel. However ...

If you’re tempted to dump the face mask and switch to face shields instead, think again. Health officials don’t recommend the clear plastic barriers as a substitute for masks because of the ...

Cloth face masks, often cobbled together as a makeshift alternative when stocks of surgical masks run low, and sometimes worn as a fashion statement, offer no practical protection against the ...