I think last time I tried was when I was 10 at that was probably like 40s. I will have to try this out again now that it is 12 years later.

I have held my breath for 3:47. I was also in the caribbean at the time and I would free dive on my days off. One of the keys to freediving is hyperventilating before you descend. It loads your bloodstream with oxygen and lets you use that last breath for a little longer. My 3:47 was also doing a deadmans float, so my muscles weren't using any o2. With fins and a mask and kicking like hell for the surface, probably two mins

wow 22 minutes is pretty crazy. i can do 3 minutes easy but only because i know the hyperventilation trick.

I Im relaxed on the floor and prepare, close to two minutes,,but if Im surfing, about 15 seconds tops...

I used to be able to hold my breath for one length of a full size college swimming pool swimming under water. I haven't got a clue how long that took to do. That took years of training for me, forty years later I probably could hold my breath for about ten seconds