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:
U.S. Navy Chief Warrant Officer John Sullivan assigned to Mobile Diving and Salvage Unit MDSU Company tests MK underwater breathing apparatus prior to going into the water to repair screw NLO. en Navy Chief Warrant Officer John Sullivan assigned to Mobile Diving and Salvage Unit MDSU Company tests MK underwater breathing