Actually, air was cleaner back when smoking was allowed on flights. They had to completely recycle all the air in the cabin where nowadays it’s all a closed system. Every fart and cough, every armpit outgassing and nasty crotch reek is with you from takeoff to touchdown now.
Most of you won’t believe me so I suggest you look it up yourself before downvoting (which you won’t).
Actually, air was cleaner back when smoking was allowed on flights. They had to completely recycle all the air in the cabin where nowadays it’s all a closed system. Every fart and cough, every armpit outgassing and nasty crotch reek is with you from takeoff to touchdown now.
Most of you won’t believe me so I suggest you look it up yourself before downvoting (which you won’t).