No amount of marketing nor "science" is going to change my mind: Aircraft cabin air is /motherfucking/ foul.
You don't need to be an aerodynamics engineer to understand this either: Take a deep breath inside a usual aircraft cabin and tell me if that air is fresh and clean. If you do, either you are fucking lying out your ass or you never tasted truly clean, fresh air in your life.
You don't need to be an aerodynamics engineer to understand this either: Take a deep breath inside a usual aircraft cabin and tell me if that air is fresh and clean. If you do, either you are fucking lying out your ass or you never tasted truly clean, fresh air in your life.