Assertion: carbon monoxide | /r/CapableOf | accumulate to dangerous levels
Facets:
Source sentences:
text: Improperly ventilated appliances and engines, particularly in a tightly sealed or enclosed space, may allow carbon monoxide to accumulate to dangerous levels.
text: Improperly ventilated appliances and engines, particularly in a tightly sealed or enclosed space, may allow carbon monoxide to accumulate to dangerous levels.