How deep can you dive with helium?

At what depth do you need helium?

In good conditions, the technical dive industry standard for using helium trimix is for all dives past 160 feet / 50m. However, if there is poor visibility, low temperatures, or strong currents that can exacerbate narcosis, it is recommended to use trimix below 130 feet / 40m.

Can you breathe helium underwater?

Helium has very little narcotic effect. A lower proportion of oxygen reduces the risk of oxygen toxicity on deep dives. … Because of its low molecular weight, helium enters and leaves tissues more rapidly than nitrogen as the pressure is increased or reduced (this is called on-gassing and off-gassing).

At what depth do you need trimix?

Dives any deeper than 197 feet require hypoxic trimix. In this mixture, helium replaces some of the nitrogen and oxygen content. Doing so reduces the risk of oxygen toxicity at depths of around 328 feet (100 m). A typical hypoxic mixture at this depth would be 10/70 (10 percent oxygen and 70 percent helium).

Can divers go down to the Titanic?

You cannot scuba dive to the Titanic due to its depth at 12,500 feet. Air consumption: one standard tank lasts 15 minutes at 120 feet. Supply for 12,500 feet would be impossible to carry even with a team. The deepest dive on record with special equipment, training and a support team is 1,100 feet.

THIS IS INTERESTING:  Your question: What year did surfing start?