Accident Database and Reviews updated to 24th Sept 2008 (246KB)
The pubic extract of the Comprehensive Database of Rebreather Fatal Accidents and analysis, of 172 confirmed rebreather fatal accidents. Manufacturers can use this data to improve designs, instructors can use it to improve training, and divers can learn from it too. The main lessons for divers are:

1. Never go solo rebreather diving: it is not Open Circuit so the diver is unaware of exactly when a rebreather fails.
2. Never dive a rebreather that you know to be faulty in any way.
3. Always change your scrubber every 3 hours with either a Micropore EAC, Draeger Divesorb or Molecular Products Sofnolime.
4. Always replace your O2 cells after a year of service, and discard no later than 2 years after manufacture.
5. Always have eCCR heads factory serviced annually even though manufacturers generally do not require this. Essential safety corrections are made during annual servicing.

1. Pre-breathe for at least 3 minutes to check your PPO2 is under control
2. Look at your PPO2 on entry,
3. Look at your PPO2 at least every minute on initial descent,
4. Look at your PPO2 at least every 4 minutes on the bottom,
5. Look at your PPO2 continuously during ascent.
!! Never ascend on a rebreather if you cannot see your PPO2. !!
6. Always use rebreathers as pure oxygen units when near the surface.
7. Always watch for CO2 problems: increasing breathing rate, fear or discomfort

1. Inject DIL manually, then think.
   Hypoxia kills without warning, so DIL injection should be an automatic reaction drilled into you when a problem occurs. Hypercapnia clouds your thinking, so flush before you think.
2. Do NOT ascend.
3. Do NOT continue on RB without injecting gas manually.

Risk Analysis Toolkit with Sports Rebreather Database. Updated to 9th May 08
The toolkit enables different types, models and versions of rebreather to be compared for safety based on observed accidents. The spreadsheet also provides tools for the assessment of rebreather accident risk and potential liability. Excel macros must be enabled to use this toolkit.

A database for the sports rebreather market is provided as an example, from which is calculated the global sports rebreather market size, revenue, accident risk and liability to net margin. The database is also used to illustrate how safety can be quantified, comparing the risk of using mCCR versus eCCR as one example and the changes to particular rebreather models as another. Changes may including training and use.

This file is temporarily withdrawn because the legal right to publish the example data is being challenged. It will be reposted, in one form or another, as soon as these rights are clarified through due legal process.

Note: Commercial, Military and Professional rebreathers have a much lower risk, and data on these is provided under Non-Disclosure to companies working with Deep Life Ltd.