underwater breathing apparatus
C24929
concept
An underwater breathing apparatus is a device that enables a person to inhale and exhale air while submerged, allowing extended activity beneath the water’s surface.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| life support system | 3 |
Instances (4)
| Instance | Via concept surface |
|---|---|
| PLSS | life support system |
| Aqua-Lung | — |
| Portable Life Support System | life support system |
| Shuttle Extravehicular Mobility Unit | life support system |