Technical diving research team with assorted tanks carrying different mixtures of TRIMIX.

The technical diving research team (shown here in the Bahamas in 2002) with assorted tanks carrying different mixtures of Trimix — a breathing gas consisting of oxygen, helium, and nitrogen. Image courtesy of Cayman Islands Twilight Zone 2007 Exploration, Deb Gochfeld, NOAA-OE.

Related Links

Cayman Islands Twilight Zone 2007

Cayman Islands Twilight Zone 2007: Technical Diving

NOAA Ocean Explorer Gallery

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