Originally Posted by
Silver Fox
If the mask gets saturated from your nose and mouth how much does it lose its effectiveness, if at all? Having practiced with a face covering it seemed to get moist pretty quick - but that might be OK. Or another way of putting it is how many masks should you take for a 10 hour flight? Or does it depend?
BA, in their pre-flight emails, say a mask should be used for up to 4 hours and recommend you bring replacements based on that timescale (departure airport, flight time, arrival airport etc.)