Ecco l’interessante risposta al quesito data da un utente di "nasaspaceflight.com forum:
"The spacesuits used for neutral buoyancy simulation at the JSC NBL and elsewhere are the same EMU design used for flight, although all of the NB components are tagged “Class III/Not for Flight” (which mostly means they don’t have the same paperwork trail as flight hardware, although it’s still pretty extensive for the NB hardware.) The outer layers are Ortho fabric (as for flight), and the suit gets thoroughly wet down to the pressure bladder. The inside is pressurized with air (actually, a Nitrox mix at JSC) at 4.3 psi above the local ambient, so the inside is dry for the wearer, as it is in space (except that you’re still affected by gravity, so if you turn upside down in the suit you fall against the helmet ring and shoulders, and you can feel the blood rushing to your head.)
Don’t know the details of the NBL, but back at the Neutral Buoyancy Simulator at NASA Marshall they had a “drying closet”, where the suit components were put after a run at a slightly elevated temperature to dry off more quickly, usually in time for a run the next day. The lower torso assembly was put on a rack upside down and dry air was blown into the feet and legs to dry out the inside (you may be wearing a liquid cooling garment, but there’s still a lot of sweating going on inside the suit most of the time.)" .
Quindi ci sarebbe una cabina speciale dove le tute vengono poste ad asciugare rapidamente.