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 NG wearing MCUP gas mask. en At sea aboard USS Constellation CV Nov Machinist Mate rd Class Gerald Spohrer wears his MCUP gas mask during Chemical Biological and Radiological defense training with the Advanced Protective Chemical Garment APCG in the hangar bay of the USS Constellation Constellation is currently on regularly