What are different types of poison gas?

Different types of poison gas include nerve agents like sarin and VX, which disrupt the nervous system; choking agents such as chlorine and phosgene, which damage the respiratory system; and blister agents like mustard gas, which cause severe skin and lung injuries. Other notable types are blood agents like cyanide, which interfere with the body's ability to use oxygen, and incapacitating agents that induce confusion or incapacitation without causing permanent harm. Each type has distinct properties and effects, making them particularly dangerous in warfare and terrorist attacks.