I went to NJH in 2023. I am on O2 at night. My pulmonogist was glad I went. They do a lot more testing than any one has done. Recomend it highly. I was advised by my pulmonologist to use O2 during flight as altitude is about 8000ft but you may not need it. I took my portable and enough batteries for 1 & 1/2 x the length of flight. You need to contact airline for form to fill out. Medicare paid for my portable as well as my home O2 concentrator. My pulmonologist was unsure about prescribing Brensocatib and preferred NJH make that decision when it becomes available. Good luck.