ɪf ðə mˈæksɪməm ˈɑːpɚɹˌeɪɾɪŋ dˈɛpθ fɔːɹ ˈɛɹ ˈoʊɪŋ tə nɑːɹkˈoʊsɪs ɪz tˈeɪkən tə bˈiː , ðˈɛn fɔːɹ twˈɛnti pɚsˈɛnt ˈɑːɹɡɑːks twˈɛnti pɚsˈɛnt ˈoʊ tˈuː, ˈeɪɾi pɚsˈɛnt ˈɑːɹ ɪt wʊd bˈiː .
If the maximum operating depth for air owing to narcosis is taken to be , then for 20% argox (20% O2, 80% Ar) it would be .