Assertion: carbon monoxide | /r/Causes | dizziness
Facets:
value: at high levels
type: OTHER
value: at long exposure time
type: TEMPORAL
Source sentences:
text: At very high levels, which are possible indoors or in other enclosed environments, CO can cause dizziness, confusion, unconsciousness and death.
text: At high levels or long exposure time, carbon monoxide can cause dizziness, chest pain, blurred vision, and difficulty thinking.