underwater breathing gas

Underwater breathing gas refers to the specially prepared mixture of gases used by divers to breathe safely underwater. Since breathing air at high pressure increases risks like oxygen toxicity and nitrogen narcosis, the composition is adjusted—often mixing oxygen, nitrogen, and helium—to ensure safe respiration at various depths. These gases are stored in tanks and delivered through regulators, enabling divers to breathe comfortably and safely in environments where normal atmospheric air wouldn't suffice. Properly managed, underwater breathing gases allow divers to explore aquatic environments with minimized health risks related to breathing under pressure.