Assertion: nitrous oxide | /r/HasProperty | administered without constant oxygen supply
Facets:
value: from pressurized containers
type: LOCATION
value: from sources
type: OTHER
value: often
type: TEMPORAL
Source sentences:
text: The dangers not directly related to nitrous oxide are mostly present because nitrous oxide is often administered from pressurized containers, without constant oxygen supply, or from sources that may contain contaminants.