Hazmat

Hazmat or hazardous materials were materials that were considered dangerous to the environment or the being that was working with them.

Often, protective suits designed to protect the wearers from hazardous materials were needed.

Two Department employees wore hazmat suits while cleaning the sewers. (TV: Black Hunger)

Commander Jeremy Fielding was a NATO officer that was the head of a hazmat team. (PROSE: Eternity Weeps)