Gas Training Marine Corps recruits prepare to train inside a gas chamber at Marine Corps Recruit Depot Parris Island, S.C., April 17, 2023. The gas chamber is used to develop the recruits’ trust and confidence in their gear. SHARE: Download: Full Size (1.63 MB) Tags: training, Marine Corps, South Carolina Credit: Marine Corps Cpl. Jacqueline Kliewer VIRIN: 230417-M-CV013-335Y.JPG Photo Gallery