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I need information on oxygen concentrators. Useful in preventing a breathing difficulty from progressing? ARDS patients seem to need ventilators pretty quickly, which is a completely different technology. OTOH might it buy a couple days until maybe the patient will be admitted to a hospital?
Is "bush medicine" but safe usage to turn it up until the pulse oximeter says 95%? What max liters/min capacity might be needed? If things are bad a few months from now, there will probably be a way to get medical advice remotely and use it more effectively.
A good one is a big ticket item; less so with lower liters/min at 90%. But probably not too hard to sell if not needed after a year.
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