Alert Diver Category: Gear

Snorkels are a useful piece of equipment but come with pros and cons. Learn more about snorkels, when to use them and if you need one.

The buoyancy compensator device (BCD) is incredibly complicated. Many have integrated weight systems and/or an integrated alternate-air inflator. Understanding your BCD is critical to staying neutral.

IN THE 1900s UMBERTO PELIZZARI was a young diver from Busto Arsizio, Italy, who was making headlines by breaking world records in constant weight and variable weight freediving. Needing an […]

Dive computers use various methods to determine surface pressure, and some are more accurate than others. Learn more about dive computers and finding the right one for you.

Dive masks are critical pieces of dive gear enabling someone to do so much. Get the basics on dive masks.

To pee or not to pee? That is not the question for technical divers, instructors, or others who spend long hours in the water. Proper hydration and comfort ensure that urine will flow. The question is, What’s the best way to handle it? 

Equipment can prove necessary in a dive emergency — but do you know what to stock? From glow sticks to knives, it’s important to be prepared for all scenarios. Learn about equipment options for all kinds of dive and boat emergencies.

Nitrox, or enriched air, is a valuable tool for recreational divers. Use of nitrox can lower the risk of decompression sickness or even extend a diver’s bottom time. Read more about nitrox.

The decision to sustainably harvest marine life can spark vigorous discussions among divers. Regardless of your views, there are benefits to understanding the equipment, procedures, and dangers associated with spearfishing.

Surface marker buoys are inflated underwater and sent to the surface as a signal. This minimizes the time a diver spends at the surface waiting for a rescue. The marker can help save lives. Read more about choosing the right marker.