Assertion: carbon dioxide | /r/HasProperty | needed to extinguish fires
Facets:
Source sentences:
text: Despite the fact that the concentration of carbon dioxide needed to extinguish fires is above the lethal level, OSHA does not prevent the use of carbon dioxide in normally occupied areas.
text: The risk involved with the use of carbon dioxide systems is based on the fact that the level of carbon dioxide needed to extinguish fires (and, thus, to protect an enclosure) is many times greater than the lethal concentration.