Assertion: nitrous oxide | /r/CapableOf | use mask
Facets:
value: over the nose
type: LOCATION
value: over the mouth
type: LOCATION
Source sentences:
text: Since nitrous oxide is a gas that is generally given using a mask over the mouth and the nose, it has been shown to raise the pressure inside the middle ear in a large percentage of patients.
text: Since nitrous oxide is a gas that is generally given using a mask over the mouth and the nose, it has been shown to raise the pressure inside the middle ear in a large percentage of patients.
text: Nitrous oxides do n’t use a mask or put a plastic bag over your head.