Results

29 stories for“universal design”

PFO, asthma, diabetes and certain medications can all change whether diving is safe. Here is why the medical questionnaire before a course matters.

Jan 27, 2025

Diving

NAUI: The Agency That Lets the Instructor Decide

Older than PADI, structured as a non-profit membership association, and built on a principle almost nobody else uses: the instructor may exceed the standards, and is expected to.

Aug 12, 2026

Diving

Flying After Diving: Where 12 and 18 Hours Actually Came From

The numbers every diver recites are not arbitrary and they are not a safety margin invented by lawyers. They come from a specific set of chamber trials, and knowing their limits tells you when to wait longer.

Aug 15, 2026

Results

Fitness to Dive: Why the Medical Form Is Not a Formality

NAUI: The Agency That Lets the Instructor Decide

Flying After Diving: Where 12 and 18 Hours Actually Came From

Results

Fitness to Dive: Why the Medical Form Is Not a Formality

NAUI: The Agency That Lets the Instructor Decide

Flying After Diving: Where 12 and 18 Hours Actually Came From