Breathing apparatus
This is a breathing apparatus at the Keck Observatory on Mauna Kea, HI. It is there for emergencies, in case astronomers or engineers have trouble breathing at such high altitudes.
Copyright:
Ardis Herrold
This is a breathing apparatus at the Keck Observatory on Mauna Kea, HI. It is there for emergencies, in case astronomers or engineers have trouble breathing at such high altitudes.