Assertion: diver's air | /r/HasProperty | breathed
Facets:
Source sentences:
text: At shallow depths, a diver using open-circuit breathing apparatus typically only uses about a quarter of the oxygen in the air that is breathed in, which is about 4 to 5% of the inspired volume.
text: Gas masks and respirators which filter contaminants from ambient air which is then breathed.
text: For the majority of scuba divers, and in particular beginner scuba divers, the air that is breathed is normal atmospheric air.