Common symptoms of inhaling carbon monoxide (CO) often resemble those of the flu, including headache, dizziness, nausea, and weakness. Because CO is colorless, odorless, and tasteless, it is often called the "silent killer," as people may not realize they are being poisoned until it is too late.
The very first and most common signs of carbon monoxide (CO) poisoning are a dull, throbbing headache, dizziness, and general fatigue or weakness. Because these symptoms closely resemble a viral illness or the flu, it is often called the "silent killer".
Clearer symptoms of carbon monoxide poisoning can include:
How quickly carbon monoxide (CO) affects humans depends entirely on the concentration of the gas and the length of exposure. Because CO binds to hemoglobin in the blood much more effectively than oxygen, it slowly starves vital organs of the oxygen they need to survive.
Because carbon monoxide (CO) is a colorless, tasteless, and odorless gas, it is impossible to detect with human senses. The only reliable way to know if it is in your air is by using a certified Carbon Monoxide Detector.
To get carbon monoxide (CO) out of your lungs and bloodstream, immediately get to fresh air and call emergency services. Because CO binds strongly to red blood cells, medical treatment is often required to safely clear it from your body.
For mild exposure, you can recover from carbon monoxide (CO) poisoning simply by getting to fresh air. However, it is never safe to rely on at-home recovery without medical evaluation. Because CO causes oxygen deprivation, even mild cases require professional assessment to ensure your oxygen levels are safe.
The term "silent killer gas" almost universally refers to Carbon Monoxide (CO). It is a colorless, odorless, and tasteless gas produced by the incomplete burning of fossil fuels (like wood, coal, propane, and gasoline). It is deadly because it replaces oxygen in your bloodstream, preventing vital organs from functioning.
The most common symptoms of carbon monoxide poisoning are headache, dizziness, weakness, upset stomach, vomiting, chest pain, and confusion. Symptoms of carbon monoxide poisoning are often described as “flu-like.” If you breathe in a lot of carbon monoxide it can make you pass out or kill you.
Carbon monoxide is dangerous because a person may not recognize drowsiness as a symptom of poisoning. Consequently, someone with mild poisoning can go to sleep and continue to breathe the carbon monoxide until severe poisoning or death occurs.
The OSHA personal exposure limit (PEL) for CO is 50 parts per million (ppm). OSHA standards prohibit worker exposure to more than 50 parts of CO gas per million parts of air averaged during an 8-hour time period. The 8-hour PEL for CO in maritime operations is also 50 ppm.
At low levels, CO exposure causes no obvious symptoms, although people exposed to low CO levels may experience decreased exercise tolerance and shortness of breath during exertion. Tightness across the forehead, flushed skin and slightly impaired motor skills also may occur.
Carbon monoxide (CO) poisoning delayed symptoms—known as Delayed Neurological Sequelae (DNS)—can appear in up to 40% of survivors after an initial, seemingly full recovery. These symptoms typically emerge during a "lucid interval" of 2 to 40 days following the acute exposure and can include profound memory loss, behavioral changes, and movement disorders.
General signs of poisoning include severe vomiting or diarrhea, difficulty breathing, sudden confusion or extreme drowsiness, stomach cramps or pain, and burns or redness around the mouth. The exact symptoms depend on the type of poison, the amount, and the method of exposure.
Symptoms of carbon monoxide poisoning
dizziness. feeling sick or being sick. feeling weak. tiredness and confusion.
Carbon monoxide (CO) is a highly dangerous, colorless, and odorless gas that can be fatal. Because it cannot be seen or smelled, it can overcome a person before they realize there is a problem. The time it takes for carbon monoxide to cause serious harm or death varies depending on the concentration of the gas in the environment and the duration of exposure.
Cyanide is one of the deadliest poisons, which can cause death to those who come into contact within a few minutes or hours of exposure, depending on the level and route of exposure.
Carbon monoxide poisoning is the suspected cause in the death of 76-year-old Dayle Haddon, a Canadian supermodel best known for being the face of the makeup brand L'Oréal. Haddon died Friday at the Solebury Township, Pennsylvania home of her actor son-in-law, Marc Blucas.
Carbon monoxide (CO) poisoning symptoms are often described as "flu-like" but come without a fever. Common warning signs include severe headaches, dizziness, nausea, weakness, chest pain, and confusion. Because CO is a colorless and odorless gas, symptoms can progress quickly to unconsciousness or death if exposure continues.
Yes, carbon monoxide (CO) makes you sleepy. Because it is a colorless and odorless gas, it is often called a "silent killer". As it displaces oxygen in your bloodstream, it causes a dangerous, sometimes euphoric, sense of extreme fatigue and sleepiness.
It is also a good idea to know the signs of a potential CO problem:
No, standard smartphones do not have built-in hardware to detect carbon monoxide (CO). Because CO is an invisible, odorless gas, you cannot use your phone's camera, microphone, or processor to sense it.
Symptoms of Carbon Monoxide Poisoning
Low levels of CO poisoning can be confused with flu symptoms, food poisoning or other illnesses and can have a long-term health risk if left uncorrected.
Yes, carbon monoxide (CO) easily shows up in standard blood tests. Doctors measure it using a carboxyhemoglobin (COHb) test, which evaluates how much carbon monoxide has bound to hemoglobin in your red blood cells instead of oxygen.