Best Nitrox Mix for 31 meters
At 31 meters (4.1 bar absolute), the optimal Nitrox mix is EAN34. This blend gives you the maximum oxygen content while staying within safe PPO₂ limits of 1.4 bar, maximizing your bottom time by reducing nitrogen absorption compared to breathing air.
The best nitrox mix is the highest oxygen percentage that doesn't exceed your chosen PPO₂ limit at a specific depth. Higher oxygen means more bottom time with less nitrogen absorption.
Optimal Mix
EAN34 (34%)
MOD (PpO2 1.4)
31.2 mt
MOD (PpO2 1.6)
37.1 mt
EAD
8.4 mt
Safety PpO2
| Depth | Best Mix | MOD | EAD | |
|---|---|---|---|---|
| 12 meters | EAN40 (40%) | 25.0 m | 6.7 m | |
| 13 meters | EAN40 (40%) | 25.0 m | 7.5 m | |
| 14 meters | EAN40 (40%) | 25.0 m | 8.2 m | |
| 15 meters | EAN40 (40%) | 25.0 m | 9.0 m | |
| 16 meters | EAN40 (40%) | 25.0 m | 9.7 m | |
| 17 meters | EAN40 (40%) | 25.0 m | 10.5 m | |
| 18 meters | EAN40 (40%) | 25.0 m | 11.3 m | |
| 19 meters | EAN40 (40%) | 25.0 m | 12.0 m | |
| 20 meters | EAN40 (40%) | 25.0 m | 12.8 m | |
| 21 meters | EAN40 (40%) | 25.0 m | 13.5 m | |
| 22 meters | EAN40 (40%) | 25.0 m | 14.3 m | |
| 23 meters | EAN40 (40%) | 25.0 m | 15.1 m | |
| 24 meters | EAN40 (40%) | 25.0 m | 15.8 m | |
| 25 meters | EAN40 (40%) | 25.0 m | 16.6 m | |
| 26 meters | EAN38 (38%) | 26.8 m | 18.3 m | |
| 27 meters | EAN37 (37%) | 27.8 m | 19.5 m | |
| 28 meters | EAN36 (36%) | 28.9 m | 20.8 m | |
| 29 meters | EAN35 (35%) | 30.0 m | 22.1 m | |
| 30 meters | EAN35 (35%) | 30.0 m | 22.9 m | |
| 31 meters | EAN34 (34%) | 31.2 m | 24.3 m | |
| 32 meters | EAN33 (33%) | 32.4 m | 25.6 m | |
| 33 meters | EAN32 (32%) | 33.8 m | 27.0 m | |
| 34 meters | EAN31 (31%) | 35.2 m | 28.4 m | |
| 35 meters | EAN31 (31%) | 35.2 m | 29.3 m | |
| 36 meters | EAN30 (30%) | 36.7 m | 30.8 m | |
| 37 meters | EAN29 (29%) | 38.3 m | 32.2 m | |
| 38 meters | EAN29 (29%) | 38.3 m | 33.1 m | |
| 39 meters | EAN28 (28%) | 40.0 m | 34.7 m | |
| 40 meters | EAN27 (27%) | 41.9 m | 36.2 m |
Use the advanced computer
Click to explore the advanced Nitrox calculator and customize PPO₂ settings
This tool is intended to be used as an informational and educational tool
Always check the safety regulations and follow the standards relating to diving with enriched mixtures. Consult a certified Nitrox diver instructor for proper training.
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