Question Sore throat and pain when swallowing - symptoms of pulmonary oxygen toxicity?

[flymolo]

I'm not a RB diver but I found this discussion interesting. Never heard of the product "Stermine", so I looked it up, no mention that it is "safe" for CPAC machines or any other breathing apparatus'. Looks like it more for surface cleaning. Just wondering if that could be the cause??

Or I could be completely wrong and it is always used for breathing applications.

i think it's pretty much the standard. i have been using it for years and haven't had an issue with it. there is another product, vikron, that seems to be popular in european market but IMO that one is harsher and requires a rinse afterwards