People often ask me how to calibrate a PRISM 2 Rebreather. Proper calibration ensures you are referencing an accurate PO2 reading. It is one of the most critical procedures for preparing a rebreather. Each time you calibrate your rig, you are teaching the unit to read PO2 correctly. A particular oxygen fraction is applied to...
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The PRISM 2 is a simple and reliable rebreather that can be used for all types of diving from the shallowest photography dives to the deepest exploration dives. P2 owners are the silent stormtroopers of the underwater world. On a recent liveaboard trip (pre-Covid) there were a number of rebreathers from different manufacturers and a...
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The world of marine research can be a hard field to break into. Long bouts of STEM academia, punctuated by intensive dive training are standard steps on the way to becoming an underwater scientist.  And in a field mostly dominated by men, it’s even rarer still to see an elite group of women pioneering new...
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Like it or not, recreational scuba diving has its limits. While great for making brief visits to our underwater ecosystems, a typical scuba rig—even with nitrox—can only provide so much bottom time. For most of us, that’s okay, because the duration of a typical dive doesn’t usually need to be that long. But what about...
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