Cleveland inventor Garrett A. Morgan, a son of former slaves, had a gift for inventing life-saving devices, including firefighter gas masks and the precursors of modern traffic lights.

The post 1 Man Invented the Modern Traffic Light And Gas Mask, ... The Cleveland Mayor was so sure the devices would fail, he told the men "Goodbye." The early prototypes weren't 100% effective.

But Singh said in August 2023 that he kept his gas mask sealed in the tear gas chamber at boot camp without difficulty. Several sailors with beards previously told Navy Times they haven’t had ...