- Dec 20, 2010
Yeah that's the risk with carbon monoxide (CO). Our bodies don't have receptors to recognize it and it binds to blood cells in place of oxygen, leading to hypoxia without warning signs.In an environment saturated with gases that displace oxygen, you might not notice it. You slowly drift to sleep. Bro and I have been in a CO environment when we were younger. Bro passed out and had no idea what happened afterwards. How did I notice? I tried to stand up...and fell. I crawled out and called an adult for help. I felt the mild headaches afterwards.
However CO2, carbon dioxide, definitely is noticed by the body and you'll know if you're not getting enough oxygen because of excess CO2. You don't just pass out without warning like with CO.