https://www.airliners.net/photo/Air-France/Airbus-A340-3/214...
It was integrated into a cargo pallet, so could be removed on planes serving routes where it wasn't needed:
https://www.airliners.net/photo/Lufthansa/Airbus-A340-313/43...
https://www.airliners.net/photo/Air-France/Airbus-A340-3/214...
It was integrated into a cargo pallet, so could be removed on planes serving routes where it wasn't needed:
https://www.airliners.net/photo/Lufthansa/Airbus-A340-313/43...
So novel that I took pictures to show my friends when I got back in the ground :-)
It's a weird layout though, because in order to make headroom for the downstairs, it blocks out some seats 'upstairs'.
Always a laugh seeing 2 or 3 crew enter a few minutes apart from each other.
There are entire websites dedicated to helping you find a flight on a particular aircraft because some passengers know the difference between a good aircraft and flying rattle can.
I'm confused about why you'd care about an amenity that's purely for the crew. It's not obvious how anything about it could affect you while flying, especially its location in the aircraft.
Air from the outside is dry, and there are strategies to mitigate this. One of them is recirculation, and in some cases, humidifiers. But my understanding is that recirculation is controlled by the crew, and humidifiers are an option the airline may or may not take.
Unless an airplane has a condenser of some sort, and I don't know any plane that does that, there is no magic. Moisture has to come from inside the plane, either though passengers breathing (that's the idea with recirculation) and/or heavy onboard water tanks (humidifier).