On Wed, 20 Mar 1996, rfarb wrote: > > On Wed, 20 Mar 1996, Peter Den Haan wrote: > > > step up from open circuit compared to fully closed. A correctly designed > > semi-closed system, so far not available yet, can be as safe as open > > circuit and would not require electronics or an O2 sensor. However, the > > > > I don't agree. It is quite possible to dive a semi-closed nitrox > rebreather too deep and die because elevated pO2. A audible or visual alarm That is possible with any Nitrox Dive, nothing to do with SCR. Pete
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