It has been a long while since I last tested how long I can hold my breath under water. I know I need something to hold me down once I inhale as much air as my lungs can hold. My first attempt I use a 5 gallon chlorine container but this not only does not work well, I use more energy than I should to test my lung capacity. I then grab a cement brick and sink it and try 2 more times. This holds my body down much better, letting me relax into my underwater silent world of breath holding mindframe. My hair flows, I look at you from beneath as I also have an underwater camera watching my antics... Show more