Check out the new Boeing 787-9 Dreamliner. When this takes off, someone's gonna spill their cranberry juice all over their seat. And the four behind. Better get a gross of Germ Free Bees for this bird.
One of the more repugnant details about air travel is the uncirculated air. A fart can linger for half an hour as its recycled through the cabin. A sneeze and its germs can travel from the back of the cabin to the front like its on a monorail.