Oxygen Concentrators (3) - $120 (Nobscot)

condition: fair

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Working Oxygen Concentrators (not medical - for welding, glass purposes only)

5L/min

O2 concentration as marked. Might go higher as the machine runs & dries out.
These older style machines tend to be quite serviceable, so replacing the the zeolite will likely get you to the full 95% (or whatever they're rated for)

1. DeVilbliss (515A?)
2. DeVilbliss (515DS)
3. Alliance Healthdyne Technologies

post id: 7935321655

posted: 2026-05-19 09:41

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Oxygen Concentrators (3) - health and beauty - by owner - household...

Working Oxygen Concentrators (not medical - for welding, glass purposes only) 5L/min O2 concentration as marked. Might go higher as the machine runs & dries out. These older style machines tend...