Commercial Fixed Wing
Flight Attendant Current
Confusion
Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Passenger Misconduct
General None Reported / Taken
Human Factors; Environment - Non Weather Related
As the crew was leaving the plane one of the ground personnel told the whole crew (very loud and rudely) that one of our passengers was wearing a bandanna as a face covering. We were not aware during boarding; no one had a bandanna on. I told him we cannot police everyone changing masks. I personally believe he changed it as they were leaving the plane as I never saw a bandanna on anyone as they deplaned. Flight Attendant C handed a mask to the gentleman that we saw in customs wearing a bandanna mask. She had one and asked him to wear it instead of the bandanna.
Flight Attendant reported being told by a ground person that one of the deplaning passengers was wearing a face mask that did not meet regulations.