High-Pressure Hoses
PEOPLE WHO HAVE FILLED scuba cylinders, refilled oxygen cylinders, or boosted a gas mix are familiar with using flexible hoses. Some hoses are covered with a durable rubber or thermoplastic […]
Alert Diver Category: Risk Mitigation
Stay Current, Stay Safe
Divers Alert Network (DAN) provides the industry’s most comprehensive cardiopulmonary resuscitation (CPR) and first aid training, grounded in evidence-based practices. Our programs leverage DAN’s research and medical expertise, along with the internationally recognized guidelines established by the International Liaison Committee on Resuscitation (ILCOR).
Oxygen Cleaning of Dive Gear: A Two-Part Series
FIRES IN COMPRESSED OXYGEN EQUIPMENT are rare, even though we hear about life-threatening accidents — a rebreather fire, an emergency oxygen regulator accident, or a gas blending system fire. Several key questions arise …
Beyond the Rescue
Understand the critical lessons Beyond the Rescue for divers. Emergency skills are vital, but what follows is equally important.
Oxygen Cleaning of Dive Gear: A Two-Part Series
IN THE PREVIOUS ARTICLE, we settled on the recommendation that equipment used to control any breathing gas mix containing 25 percent oxygen and above at typical scuba cylinder pressures should […]
A Timeline of Decompression Stress
Most divers think about decompression in terms of depth, bottom time, ascent rates, and safety stops. But the body experiences a dive as more than just time underwater. Decompression stress […]
Do I Need Medical-Grade Oxygen?
DAN INTRODUCED THE FIRST standardized emergency oxygen course for divers as lay providers in 1991. More people trained in oxygen delivery means that providers in dive locations worldwide need to have emergency oxygen units available. Obtaining oxygen refills, however, is an ongoing problem …
The DAN Recompression Chamber Network
Divers Alert Network (DAN) maintains a global recompression chamber network, which consists of a database of all hyperbaric chambers with the capability and willingness to treat injured divers.
Mismatched Scuba Valves to Cylinder Outlets
A VALVE-TO-CYLINDER MISMATCH recently resulted in a deadly outcome in Europe. This issue is preventable with formal, function-specific training and a basic understanding of scuba tank valves and cylinder threads.
Helium Gas Purity: What Is Pure Enough?
THE THREE GASES GENERALLY used in recreational and technical diving are oxygen, nitrogen, and helium. Nitrogen is the most abundant and is usually the default gas, but no one seems […]
