When is carbon monoxide considered dangerous?

Carbon monoxide is considered dangerous primarily because it is odorless and colorless, making it difficult to detect. When inhaled, even in small amounts, carbon monoxide can bind to hemoglobin in the blood, forming carboxyhemoglobin, which significantly reduces the blood's ability to transport oxygen. This can lead to serious health effects, including symptoms like headaches, dizziness, confusion, and in severe cases, loss of consciousness or even death. The lack of sensory warning makes it especially hazardous in poorly ventilated spaces or enclosed environments where carbon monoxide can accumulate, posing a risk to anyone present. This intrinsic property underscores the need for awareness and safety measures concerning carbon monoxide exposure.