Originally Posted by Oxymore

Quick question if anyone has experience flying US-FR on AF: the website states that specifically FFP1/2/3 masks must be worn on board, but how is that enforced leaving from the US? (I'm not asking about wearing a mask in general, just about the type of mask required). There are several kinds of disposable masks available in the US, but I am having a very hard time finding FFP masks (and I believe FFP is a EU standard).