This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
US Navy NY Navy Diver st Class Paul Mehring of Portland Ore. describes how aviation personnel use the reducedoxygen breathing device in relation to flight simulator to group of educators from Texas in t. en WHIDBEY ISLAND Wash July Navy Diver st Class Paul Mehring of Portland Ore describes how aviation personnel use the reducedoxygen