Hello Leon,
I used a friend’s Su An Chi machine for more than a month, persuaded by the results, I bought my own. The machine is expensive. My friend, who for years took care of a prostrate husband with breathing difficulties, said cheaper machines were not as good. Hers had been used without problems three times a day during 10 years. I mention this because the price is off putting – but for me worth it.
The machine oxygenates the body with visible result in the oxygen meter. A two hour walk in good weather, I stress good weather, doesn’t faze me; before 15 minutes left me panting. This is my experience. I have as yet moderate emphysema. I am incapable of making a medical assessment. And I am wary of assuming that my experience will benefit others.
Best regards,
Andrea