Gaseous agents are substances in a gaseous state that can have various effects on the environment and living organisms. They can be naturally occurring, like carbon dioxide and oxygen, or man-made, such as chlorine and ammonia. These agents can influence air quality, climate, and health, depending on their concentration and exposure. In industrial and scientific contexts, gaseous agents are often used for specific purposes, including sterilization and disinfection. For example, ethylene oxide is a gaseous agent used to sterilize medical equipment. Understanding these agents is crucial for safety and environmental protection.