Mark Derrick

Rebreather Specialist

Southeast Florida

About

Mark Derrick teaches IANTD and TDI out of Dive Gear Express in southeast Florida. Overhead ratings run to advanced wreck. On open circuit the deepest rating held is advanced trimix, and advanced gas blending is taught alongside it. Rebreather instruction covers 5 units — among them Dolphin, MkVI Discovery / Se7en, O2ptima CM and PRISM 2 — to mixed-gas and trimix level. Also teaches oxygen equipment servicing.

Teaches at

Dive Gear Express

Agencies & Courses— pick an agency to filter; tap a course to see who else teaches it

Advanced Nitrox Advanced Trimix Decompression Procedures Extended Range Trimix Advanced Mixed Gas CCR Air Diluent CCR Air Diluent CCR Decompression Procedures Helitrox CCR Decompression Procedures Mixed Gas CCR Semi-Closed Rebreather Advanced Wreck Advanced Gas Blending Equipment O2 Service Tech Nitrox Gas Blending

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Rebreathers— tap a unit to see who else dives it

Dolphin (Dräger)MkVI Discovery / Se7en (Poseidon)O2ptima CM (Dive Rite)PRISM 2 (Hollis)Se7en (Poseidon)

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Location

Southeast Florida, United States

Shown at Dive Gear Express — instructors are placed at the centre they teach at, not at a personal address.

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