Assertion: nitrous oxide | /r/HasProperty | dangerous
Facets:
value: very
type: DEGREE
value: at high levels
type: OTHER
Source sentences:
text: Because nitrous oxide tends to diffuse into air-filled spaces in the body (intestines, middle ear, etc.), it may be dangerous when used by persons with middle ear disease, bowel obstruction, pneumothorax, etc.
text: Nitrous oxide is considered to be very dangerous at high levels.
text: This is why Nitrous Oxide can be dangerous, ignorant users don't feel a need to get normal air and so keep on suckin' on that sweet rubber balloon teat.