| Answer | Crossword Clue |
|---|---|
| AIRSAC | Bird's breathing apparatus |
| INHALATOR | Breathing apparatus |
| LUNG | Breathing apparatus |
| NARES | Breathing apparatus |
| LUNG | Breathing apparatus? |
| GILL | Fish's breathing apparatus |
| SNORKEL | Underwater breathing apparatus |
| AIRPACK | Firefighter's breathing apparatus |
| GILL | Underwater breathing apparatus |
| SCUBA | Underwater breathing apparatus |
| AQUA | ...-Lung (underwater breathing apparatus) |
| SCUBA | Self-contained underwater breathing apparatus |
