Yuwell YU300 1.0L/min Portable Oxygen Concentrator,oxygen bar
Yuwell Oxygen Concentrator Model 8F
Yuwell Oxygen Concentrators
Yuwell
These pistons move rapidly to pull in the room air and compress it, so it runs under pressure into the sieves.
You need to talk to your provider about the models they stock and support.
The air compressor is a small motor with two pistons.