On August 29, 2025, Divers Alert Network (DAN) announced Cliff Richardson as its next President and Chief Executive Officer. Richardson will succeed longtime leader Bill Ziefle...
QUEST editor-in-chief Jesper Kjøller shares the results of their latest research trip conducted last Fall aboard Red Sea Explorer’s High Wave with DAN Europe’s Dr. Constantino...
DURHAM, NC – May 6, 2025 – Divers Alert Network® (DAN®), has launched a new course in its Continuing Education for Dive Professionals program. This free...
Quantifying the frequency of diving injuries and fatalities and understanding what went wrong is arguably critical to improving diving safety, particularly in our data-challenged industry. That’s...
In the immediate aftermath of a diving fatality, law enforcement needs to locate an emergency contact for the accident victim. If that person’s phone is locked,...
The view among many industry insiders, Pre-RF4, was that rebreather diving has gotten safer—an improvement from the estimate that CCR divers were 5-10x more likely to...
Compared to Frenzel equalization used by freedivers, Valsalva equalization can be hard on the ears and eustachian tubes, and could cause problems for tech divers with...
In this issue of InDepth, we explore the value and efficacy of using mouthpiece retaining straps aka ‘gag straps’ to improve rebreather diving safety. Though few...
Isobaric counterdiffusion is one of those geeky, esoteric subjects that some tech programs deem of minor relevance, while others regard it as a distinct operational concern....
As every tekkie knows, helium is essential for deep diving due to the fact it’s non-narcotic and offers low breathing gas density. But it’s conceivable that...
