nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqxwz72agxmrh3q2d7rsrckjqzydryeumqxrtswjfv78v79yhp2gzqt7k95v (nprofile…k95v) Yes canula, no to constant flow. Most concentrators (which get their O2 from room air) deliver it on demand when inhaling. The flow rate depends on how fast you are breathing. There are ballpark equivalencies to LPM, but they are just that-ballpark.
I think of it like a scuba tank, only it's my battery capacity instead of compressed gas I'm using when I breather harder.
It's funny-people see the machine and assume something is wrong now. It's the opposite; now I can breathe.