Assertion: diver's air | /r/AtLocation | the −20
Facets:
value: to range
type: OTHER
value: easily
type: MANNER
Source sentences:
text: When scuba diving in water between 7 to 10 °C (45 to 50 °F) the air arriving at the second stage can easily be in the −20 to −10 °C (−4 to 14 °F) range, whereas the surface supplied air will be at nearly the same temperature as the water, which in the worst case would be just below freezing but still warm enough for the divers exhaled breath to keep ice from forming.