Just returned from a 7 day Alaska cruise on the Ryndam. I am on oxygen 24/7 and I rented an Inogen One unit and used it both on the cruise and on the flights to and from the ship. It was wonderful and I would highly recommed it to anyone that needs supplemental oxygen on a regular basis. The unit was easy to handle and the batteries supplied plently of time before needing to be recharged.
Thank you for your post. I'm sure this is very valuable information for many folks out there.
Mary Lou Scanlon
NCL Pride of America April 24, 2010
NCL Epic February 12, 2011
RCCL Allure of the Seas - September 18, 2011
Celebrity Eclipse - February 11, 2012:
RCCL Navigator OTS - February 9, 2013