Sue299- last year on our way to WDW, the flight attendant said the following:
" In the event we lose pressurization on the plane, an oxygen mask will fall from the ceiling. If you are traveling with a child, please place the mask on yourself first,before placing it on your child.If you are traveling with 2 or more children, just pick your favorite!"
He also said, "If your life jacket doesn't blow up when you pull the cord, you can use this tube to blow it up manually. If that doesn't work, you are having a bad day!
