Would you like to leave a message? http://www.manhasset-specialty.com/carnival-cruise-casino-offers/ marine carnival slot machine  Condensation is normal on all big airliners, but the 787 has a higher level of humidity for longer periods to make passengers more comfortable, about 15 percent for the 787 compared with 4-5 percent for conventional metal aircraft, Boeing said. The humidity can be much higher when any plane is on the ground with doors open, perhaps 95 percent, because it matches the ambient air. At cruising altitude, however the air is dry and moisture comes mostly from passengers.