It's wonderful that portable oxygen concentrators that were approved by the Federal Aviation Administration (FAA) can be used on flights going to or from the United States. This means that these portable oxygen concentrators have been found to be safe for the user, as well as for everyone else on board the airplane, in any normal flight situation. You can rest assured that all of the portable oxygen concentrators sold by American Medical meet the requirements and have been approved by the FAA.
Just because a portable oxygen concentrator is FAA approved, doesn't necessarily mean that every airline in existence has approved each and every FAA approved portable oxygen concentrator. JetBlue, like many other airlines, has its own set of requirements and list of concentrators that it will allow on its flights.
JetBlue requires that you call before booking your flight, to notify them that you will be bringing the POC with you on your flight. The following requirements depend on whether you will actually be using your portable oxygen concentrator on the flight, or if you are just bringing it and you only plan on using it after you've reached your destination. If you aren't using on your flight, you will need to be sure that it is packed securely and in a way that it won't become damaged, and it has to be stowed in the cabin.
They require that the portable oxygen concentrator be an FAA approved model, and you have to have the official manufacturers label for the POC showing that it has been approved. JetBlue will allow most FAA approved models on their flights. For a full list of the ones they allow, check the JetBlue POC requirements web page. http://help.jetblue.com/SRVS/CGI-BIN/webisapi.dll?New,Kb=askBlue,case=obj.
As for battery requirements, the POC must be in battery-operation mode throughout the whole flight, because you will not have access to outlets while you are on the plane. The batteries must meet your individual requirements for how much you will need, and how much more JetBlue requires you to bring when you board your flight. They will tell you exactly how much more you should bring when you call them. You will also need to make sure your battery terminals do not touch anything metal in transit, to avoid damages.
You have to have a written letter from your doctor when you board your flight, and the letter must have a letterhead and be no more than a year old prior to your flight. JetBlue will not accept a generic form downloaded from the FAA website – it must be from your doctor's office. The letter must include whether or not you know how to operate the POC and recognize all of its alarms, the phases of the flight when you will be needing to use the POC, and the maximum flow rate, as per the pressure in the cabin, which is pressurized to an altitude of 8,000 feet.
You will also need to arrive at the airport no less than an hour before your scheduled flight to meet with a crew member, who will inspect your paperwork and give you a boarding pass. If you followed all of their requirements, you should be ready for your flight with JetBlue, and your portable oxygen concentrator.