Foam Cleaning Firefighting researchers use hoses to clean firefighting foam out of a container after a test at the Naval Research Laboratory in Chesapeake Beach, Md., Oct. 25, 2019. SHARE IMAGE: Download Image: Small (0 KB)| Medium (0 KB)| Full Size (1.14 MB) Photo By: David Vergun, DOD VIRIN: 191025-D-UB488-008.JPG Photo Gallery