Why is a Toxic Gas casualty considered very dangerous?

A Toxic Gas casualty is considered very dangerous primarily because sometimes a "gas" cannot be seen or smelled. This makes it particularly insidious because individuals may be exposed to harmful substances without any immediate warning signs, such as a noticeable odor or visual indicator. Consequently, people can inhale or come into contact with these gases unknowingly, leading to serious health risks or incapacitation.

The lack of sensory detection means that standard safety precautions, such as leaving the area or using personal protective equipment, may not be immediately considered, increasing the risk of prolonged exposure. This scenario heightens the urgent need for proper identification and mitigation strategies for toxic gas incidents to ensure safety and minimize harm. Understanding this aspect of toxic gases is critical for anyone involved in damage control and emergency response.