Oxygen Toxicity: Potential New Method of Prevention

The possibility of developing oxygen toxicity remains a concern for us deco and Nitrox divers. Although the exact mechanism is still under debate, the primary theory is that too much  oxygen over too much time can induces seizures.   Research in neuroscience might provide us with new insights to reduce the risk of oxygen toxicity.,

July 21, 2015 3:41 pm | Category: Uncategorized

Does Pre-breathing your rebreather matter?

Training agencies and rebreather manufacturers have advocated pre-breathing the rebreather prior to diving. The rationale has been that CO2 bypass and scrubber faults can be detected prior to jumping into the water. As one instructor told me: “Better to pass out on the boat deck than underwater”. This practice appears to have common sense but,

July 16, 2015 4:07 pm | Category: Uncategorized

Migraines and DCS

Getting into diving with a history of migraines? Have you been diving but are developing migraines? Is this something a diver needs to why worry about? This article explains the relationship between migraines and the presence of a right-to-left shunt. We know that the presence of PFO’s (patent foramen ovale) increases the risk of type,

May 15, 2015 4:17 pm | Category: Uncategorized


As the Add Helium dive team began to explore deeper and further, they were not satisfied with the “status quo” of information. Training agencies and industry experts clearly disseminated outdated and unsubstantiated information.

We all need information based on valid research to achieve optimal dives.

The information you seek, the information we all seek, is here on our site – take a peek and improve your dives.

21 Feb
How Do You Learn Best? Improve Your Dive Learning Experience

Feb 21st, 2018 by admin in Business ,Rebreather Diving

Ever wondered how we learn and how we retain what we learned? Have you noticed that you will retain less than 100% of the material presented? Furthermore, because you zone out, get distracted, or do not comprehend, you are not even cognizant of the things you see and hear during the class. Every time a,

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Why Pockets?
08 Jan
Why pockets?

Jan 8th, 2018 by admin in Business ,Rebreather Diving

During a dive, clipping gear to D-rings provides easy access to items we use most often. Reels, lights, primary SMB’s and line arrows are good examples of items we use often on a dive. However, we bring some items “just in case”. Many of these items could present an entanglement issue if stored externally. Pockets are often the best place to store these items. For example, spare masks, gloves, secondary cutting

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05 Jan
2nd Annual Add Helium Expedition Seminar Trip Report

Jan 5th, 2018 by admin in Rebreather Diving

Since last year’s event was a full success, we hosted it again at Dive Tech in Grand Cayman. Conditions were terrific for this time of year. The water temperature was at a balmy 81 degrees all the way down to 400 feet and the air temperature ranging mid 80’s during the day and mid 70’s in the evening. Some of the participants from last year’s event decided to return for another round thus giving the group a nice mix of new and old acquaintances. This year we had Inspirations, rEvos, Megalodons a

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