Swiss International Air Lines has also been requiring surgical, FFP2, KN95, or N95 masks since February 1, banning fabric masks as well as masks with valves.

According to the airline’s website, “The obligation to wear a mouth-nose cover applies to all passengers (also vaccinated and recovered) and staff on board…facemasks of the FFP2, KN95, or N95 standard, as well as surgical masks, are obligatory when boarding, onboard, and when leaving the aircraft.”

Related: American Airlines Flight Cancelled After Teens Onboard Refuse To Wear Masks

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