Tec Trimix Upgrade. PADI DSAT TecRec Hypoxic Course for Normoxic 65 Diver.

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Tec Trimix Upgrade.

Tec Trimix Upgrade.  PADI DSAT TecRec Hypoxic Course for Normoxic 65 Divers.  Photo © Wes C. Skiles, RIP.  CD Dan.

Tec Trimix Upgrade will train you in the use of a normoxic travel gas at the start of a dive, until one gets to a depth such that the partial pressure of oxygen in one’s hypoxic back gas is enough to keep one conscious.  This travel gas is then used when one first leaves the bottom until the switch to the deco gas with the next highest fraction of O2.

Tec Trimix Upgrade is for those who have the PADI Tec 65 Diver cert.  The max. depth on the last training dive on the Tec Trimix Upgrade Course is now 90m and not 75m.

Each two months on the paradise Island of Malapascua, off Cebu, in the Philippines, award-winning Course Director Dan Robinson runs his.

  • PADI AI Course.
  • PADI Open Water SCUBA Instructor Course.
  • Full PADI IDC.
  • PADI IDC Staff Course.
  • Full PADI MSDT Prep Course.
  • PADI Speciality Instructor Training Course.
  • Technical diving from Discover Tec and Tec Basics right up through full Tec Trimix Instructor, Tec Sidemount Instructor and his own Technical Advanced Wreck Diver Course.
  • ANDI Cave Diver Course.


Programmes are also available on the beautiful Island of Koh Tao in Thailand and in the amazing caverns and caves at Khao Sok, Sa Kaeo and Song Hong, plus in the North.  I can travel to you, wherever you are in the World, in particular to the UK or to Australia.  I can build you a bespoke instructor or diver package, say.

  • PADI Tec Trimix Upgrade Course.
  • CD Dan’s PADI Tec Advanced Wreck Course.
  • PADI Cavern Diver Course.
  • PADI Ice Diver Course.
  • PADI Technical Advanced Rescue Course.

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