> I don't know how much cleaning is involved in your "flush". It does not
> take many milligrams of oil to make a pneumonia.
> Also, I am not sure what oil you regard as safe. "Mineral" means petroleum
> last I learned about these things. The lubrication needs to support the
> temperature and pressure, be compatible with lungs, be edible, and be
> O2 safe. I got 2 liters of such oil from coltri for $200.
> -- mrr
If someone told you that oil was compatible with lungs, even the food
grade stuff, they didn't know what they were talking about. Oil that
gets breathed in ... even cooking oil, can coat the inside of the lungs
and stop the transfer of oxygen.
And if they said that oil was O2 safe, again they didn't know what they
were talking about. There are two oils that are used in the Coltri
machines ... standard synthetic (750 in EU and 751 in Americas) and a
food grade synthetic for the Nitrox machines (466). And the oil in the
Nitrox machines just HAPPENS to be food grade. The fact is that it is
used because it oxidizes slower in Nitrox than the standard stuff.
But I am sure glad that we stock it in the US and don't have to go to EU
for oil. It is only about $50 per gallon here ... not $100 per liter!