👉 Blood fumes refer to the noxious, irritating gases produced by decomposing blood, primarily composed of carbon monoxide (CO), hydrogen sulfide (H2S), and other volatile organic compounds. When blood is exposed to oxygen or other substances, it can break down, releasing these toxic gases. Carbon monoxide, in particular, is highly dangerous as it binds to hemoglobin in red blood cells much more effectively than oxygen, reducing the blood's ability to carry oxygen throughout the body and leading to symptoms ranging from headaches and dizziness to severe poisoning and death. Hydrogen sulfide, another component, is even more toxic and can cause immediate respiratory failure and blindness. Blood fumes pose significant health risks, especially in enclosed spaces where ventilation is poor, and exposure can lead to acute illness or fatalities.