| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | gaseous oxygen | deep-sea diving community | Essential for deep-sea divers to prevent decompression sickness, and for medical use in treating patients with respiratory issues. | 1 |
| 2 | gaseous oxygen | deep-sea diving community | Gaseous oxygen is used as a breathing gas for deep-sea divers to prevent nitrogen narcosis and oxygen toxicity. | 1 |
| 3 | oxygen | deep sea divers | Limited availability at extreme depths or altitudes | 1 |