open circuit
Tec 45
Second level of the technical diving progression, extending staged decompression diving to around 45 m with an additional decompression gas beyond what Tec 40 covers.
Second level of the technical diving progression, extending staged decompression diving to around 45 m with an additional decompression gas beyond what Tec 40 covers.
Second level of the technical diving progression, extending staged decompression diving to around 45 m with an additional decompression gas beyond what Tec 40 covers.