scuba diving ascent - Andy Davis Sidemount Technical Wreck Diving Blog

Does Nitrogen Narcosis Impairment Persist?

nitrogen narcosis impairment critical-flicker-frequency-fusion-study

A new study on nitrogen narcosis challenges the long held presumption that nitrogen narcosis impairment dissipates immediately on ascent from depth.

A Logical Application of Gradient Factors for OC Tech Divers

My systematic method for assigning effective gradient factors settings on recreational and technical open circuit dives.

How to Judge Your Diving Ascent Rate Without a Dive Computer

Being able to judge your diving ascent rate is an invaluable safety skill if your computer or bottom timer fails. These tips show how!

CO2 Narcosis and Hypercapnia When Scuba Diving

scuba-diving-co2-narcosis-and-hypercapnia

Did you know that mild CO2 retention (hypercapnia) causes acute CO2 narcosis symptoms when you are diving? Don't assume it is nitrogen!

How To Best Ascend When Scuba Diving?

Three important tips on how to ascend when scuba diving. Read this to increase your safety and enjoy less fatigue after your dives!

The Best Ascent Speed for Scuba Diving

Learn the best ascent speed for scuba diving. Contrary to assumptions, slower is not always safer when it comes to diving ascent rate!

Diving Accident Analysis: Christine Gauci Fatality | Malta 2020

christine gauci acccident malta analysis lessons learned

Assessing critical learning points to help promote increased dive safety. In January 2020, Christine Gauci, a 35-year old technical diver tragically perished in a scuba diving accident in Malta.

ANDI Ascent and Descent Procedures | Diving Techniques

Sidemount Technical Wreck Diving Subic Bay Philippines

The ANDI ascent & descent procedures explained. Increase safety & promote team-cohesion. Rec & tech protocols | Advanced Diving Techniques

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