Deep Expl. level 2

The holder of this card wiil be certified to conduct decompression dives using scuba equipment to a maximum depth of 60 M.S.W., using multiple breathing gasses containing all standard oxygen/helium mixes. The maximum depth is only limited by the gas mixture

When breathing a bottom gas, the PO₂ may not exceed 1.4 bar. When breathing a decompression gas containing between 21% and 50% oxygen, the PO₂ may not exceed 1.5 bar. When breathing a decompression gas containing more than 50% oxygen, the PO₂ may not exceed 1.6 bar. The PN₂ may not exceed 3.2 bar.

The holder may drop and use unlimited stages.