It filters 95% of particulate matter, just like the N95 mask, says Dr. Nina Shapiro, a pediatric ear, nose and throat specialist at Westside Head and Neck in California. KN95 masks are the Chinese ...

But with Covid-19 still circulating, the question has resurfaced: Do travelers need to take precautions, such as wearing face masks, when they fly ... and runny nose, there are still many ...

And in the midst of a pandemic, Etihad Airways has created a new perk for those flying first or business class: a nicer face mask ... pull it up over their mouth and nose to protect themselves ...