190624-N-AZ382-0147 PORTSMOUTH, Va. (June 27, 2019) Boatswain's Mate 2nd Class Zolanda Cook, right, from Fort Worth, Texas, shows Logistics Specialist Seaman Arianna Eddy, left, from Bay City, Michigan, how to don a respirator during a safety fair aboard the aircraft carrier USS George H.W. Bush (CVN 77). George H.W. Bush is at Norfolk Naval Shipyard undergoing a docking planned incremental availability. (U.S. Navy photo by Mass Communication Specialist Seaman Joseph C. Vazquez/Released)