You can do multiple mouth fills. It's a good practice routine.
The deepest mouth fill I have done (head down) is around 40m, although it was more of a late partial mouth-fill. Better freedivers often do them much earlier, such as at 30m.
There is no need to die at any depth
The deepest mouth fill I have done (head down) is around 40m, although it was more of a late partial mouth-fill. Better freedivers often do them much earlier, such as at 30m.
There is no need to die at any depth