[1] Static apnea is defined by the International Association for Development of Apnea (AIDA International) and is distinguished from the Guinness World Record for breath holding underwater, which allows the use of oxygen in preparation.
Beta blockers (doping in sport of freediving; prolong every type of apnea by reducing heart rate, blood pressure and cardiac output) can prolong static apnea for up to 20%.
** Goran Čolak also has 11:06.14 and 10:19 under special rules at 12th and 11th Fazza freediving competition respectively, in Dubai, UAE.
[7][8] There is a variation of the static apnea discipline where it's possible to breathe 100% oxygen for up to 30 minutes prior to the breathhold.
This is not part of formal competitions, but is occasionally used to set individual records.