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RV with low volume mask

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.
erixsparhawk

erixsparhawk

Member
Apr 17, 2021
44
14
23
37
How deep can one reasonably be expected go starting the dive with at true RV and a low volume mask?
I assume that that it would be however much you can hold in your mouth?
 
xristos

xristos

Well-Known Member
Sep 5, 2013
167
37
68
26
How deep he mouthfill?
 
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