Assertion: diver's breathing gas | /r/HasProperty | supplied through hose
Facets:
value: from compressors
type: OTHER
value: from hand pumps
type: OTHER
value: from the surface
type: LOCATION
Source sentences:
text: Air or other breathing gas may be supplied from hand pumps, compressors, or banks of high pressure storage cylinders, generally through a hose from the surface, though some models are autonomous, with built-in rebreathers.