The biggest problem is that pilots joining an airline are not warned about the problem.
Our B757 have a big problem with fumes ,i was involved with a test fight for fumes ,we had a fumes event during this flight!
The results should have taken a couple of weeks but its already 3 monhs ago.
the goverment and CAA are spineless and dont want to look into the problem ,they have set up the COT who dont want to listen to people who believe fumes are a problem!
Neil