My brother is 76, lives on his own, is of sound mind. Eats well. He gets out a few times a week. Has given up most of his driving. He has a lot of other things wrong with him. All of which the specialists and doctors are dealing with. He has constant fluid on the lungs. At the moment is on high dose of steroids, antibiotics etc. This will be stopping shortly. He has told me that the antibiotics are cutting down on his coughing. Do you think oxygen breather would help? Is it possible to get this without a prescription? Where would I get him some? Have any of you done this (or had dealings with this) I need to help him. (He is miles away from me.)
Buzzy, my father had to have a sleep test for oxygen sats overnight first; that started oxygen for nighttime use. Gradually he required it for daytime use, and as Shane wrote, had tests for that as well.
What we also used was a HEPA air purifier and a humidifier, both in the living room, where he spent most of his time,
You might also ask about an incentive spirometer. We've gotten ours during hospital stays, so Medicare paid for them.
Good luck!