Preventing Breathing-Gas Contamination

Breathing-gas contamination, although rare, can happen. Sources of contamination vary, but they are important to know. Get the inside scoop on breathing-gas contamination.

Left hand holds a breathing gas measuring device

Boat Collision and Propeller Safety

Propeller trikes happen to divers and the injuries are brutal. Read more about propeller safety, tools, research and more to prevent these nasty injuries.

Submerged propeller whirls

Checklists

Checklists may be the missing tool to safer diving. Checklists are used in other fields, not just diving, like aviation and surgery. Read more about the history and importance of checklists.

Male diver is sitting down and hand with checklist is in foreground

More Than Just Bubbles

While prevention against decompression sickness, it’s relatively rare. Comparatively, there are more common hazards to divers. Read more.

Paramedics tend to a cyclist with a head injury

Acclimatization

Acclimatization is the adaptation to natural exposure, but could this apply and alter decompression stress? One research team looked at how acclimatization and repeatedly diving could impact someone’s predisposition to decompression sickness.

Diver blows into a tube and other man monitors on laptop

Teaching Rescue: Am I Qualified?

WHEN ASKED TO DESCRIBE THEIR FAVORITE COURSE, many divers will discuss the challenges and triumphs they experienced during their rescue class. Instructors often describe rescue as the most rewarding course […]

dive rescue course at DAN

Rescue of an Unconscious Diver

The rescuing of an unconscious diver is a complicated event and requires strength and training. Learn how to rescue an unconscious diver.

Female rescuer works with an unconscious diver in the water

Ascent Rates

Ascent rates are influenced by different variables, but nearly all exerts agree that divers should keep slow ascent rates to avoid any complications. Read more about ascent rates.

Diver holds onto a mooring line while ascending

Tank Safety

Do you fully understand relevant safety standards and maintenance practices of cylinders? Gain an education on how to safely transport cylinders, inspect life support equipment and more.

Line of scuba tanks