Tray tables are cleaned routinely as part of a normal full cabin clean, but not by FA's on a turnaround clean.
With apologies to Mr. Pink, as you've appreciated from the tv remote, there are a thousand or more surfaces that we touch every day that will be unclean or have not been sanitised. I can't help but feel that Mr. pink is carving a nice little blog niche for himself out of non-existent material?
Aircraft cabins don't have increased CO2 levels, but they do have reduced O2 levels and that is nearly always what causes a variety of problems, including fainting.
I agree about dryness being a root cause. Just one other thing - I believe that the face masks are worn to protect
you from
them, not as is often assumed vice versa.
