The FAD Calibration Study is designed to determine how exercise, either dry or immersed, affects the minimum safe waiting period before flying after diving.

Patent foramen ovale (PFO) is associated with an increased risk of decompression sickness (DCS), but there is no consensus among experts whether and how divers with PFO should be treated. Currently divers with PFO who choose to continue diving but want to reduce their risk of DCS have two options: undergo PFO closure or dive more conservatively. The study question is: Are divers with PFO who underwent the closure procedure better off than divers with PFO who continue diving without the closure?

Sudafed is an over-the-counter drug used extensively among divers to enhance ear equalisation during a dive. This study investigates whether Sudafed increases the risk of oxygen toxicity in an animal model.

The expected growth of new participants in technical diving may result in more accidents and fatalities. This study analyses various aspects of safety including, but not limited to, decompression safety, physical fitness requirements and cardiovascular effects of extreme diving. The purpose of the study is to explore the stress of extreme dive exposures on divers and the requirements for participation.

This project includes monitoring of diving incidents, injuries and fatalities in air, nitrox and mixed-gas diving. Data has been collected from participants or witnesses of mishaps who may report online, from first responders, medical providers and investigative agencies. DAN compiles case reports and includes data from these reports in DAN's Annual Diving Report.

The growing popularity of breath-hold diving led to the creation of the breath-hold incident database in 2005. Both fatal and nonfatal cases are collected to identify risks and aid in public education. DAN compiles case reports and includes data from these reports in the DAN Annual Diving Report.

Every three years the average age of recreational divers (i.e. DAN Members) increases by one year, and they have more chronic diseases than in the past. The purpose of the DAN Member Health Survey (DMHS) is to establish the prevalence of cardiovascular risk factors, diabetes and asthma, access to primary health care and the diving practices of DAN Members. The results of the study will help the diving community decide about preventive measures for injuries and fatalities and will help DAN to focus its research and education efforts.

Project Dive Exploration (PDE) is an observational research of dive exposure and outcomes. The study collects and analyses electronic dive profiles as recorded by a depth/time recorder for the purpose of conducting statistical analysis of the risks of DCS. Divers report their health status 48 hours after exiting the water.

DAN DSL (Diving Safety Laboratory) is a real mobile research laboratory, making all the necessary tools for field diving data gathering available. DSL offers free training courses at various levels to allow volunteers to get involved in investigating dive safety.

DAN has obtained data from the US Navy, Duke University, PDE (including DAN Europe's Dive Safety Lab) and the Institute of Nautical Archaeology. Data are being converted to a format that will be used as a reference database for calibration and evaluation of decompression algorithms. Divers using one of many compatible dive computers may contribute their electronic dive log data to PDE.

Physical fitness is an important but poorly documented factor in diver performance. Investigations will assess the physical fitness of divers and the physical fitness required for typical tasks completed by divers.