| Re: Training Improves Divers Ability to Detect Increased C02 There are some indirect ways you can tell. If your RMV is very low, that can be an indication. Also, during more formal CO2 testing, it has been found that retainers are able to function more or less normally compared to the rest of the population when exposed to low doses of CO2 (it takes a higher dose for it to affect their respiration rate and volume). (Citations contained in my paper in the Rebreather World Library.) |