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> > The ACSC/DCSC has a AGA/Interspiro FFM without valves in the oral-nasal cup.
> > How prone this mask is to fogging is unknown to me.
> 
> This doesn't solve the venting problem.  Exhaling through the nose would
> still route gas into the loop, not outside.
> 
> Aloha,
> Rich
> --
> Send mail for the `techdiver' mailing list to `techdiver@terra.net'.
> Send subscription/archive requests to `techdiver-request@terra.net'.

	Isn't this an *advantage* since nasal venting is one of the
commonly quoted complaints about shifting to CC?

	Surely the loop has an overpressure valve to dump through; just
run the loop at or near the top end of the cycle.

	Mark me up for an FFM on the 'breather. :-) (Dream on!)

	Jason the poor.

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