US Fire Marshals on X: "Carbon Monoxide is a killer: A bedroom with its door left open has about 10,000 PPM CO (parts per million of Carbon Monoxide), which is extremely toxic.
![Carbon monoxide measurements from a typical home, levels show peaks and... | Download Scientific Diagram Carbon monoxide measurements from a typical home, levels show peaks and... | Download Scientific Diagram](https://www.researchgate.net/publication/329177530/figure/fig1/AS:696831323426820@1543148942932/Carbon-monoxide-measurements-from-a-typical-home-levels-show-peaks-and-troughs-between-0.png)
Carbon monoxide measurements from a typical home, levels show peaks and... | Download Scientific Diagram
![2a-c. Indoor air concentration of carbon monoxide (CO) (ppm) from burning | Download Scientific Diagram 2a-c. Indoor air concentration of carbon monoxide (CO) (ppm) from burning | Download Scientific Diagram](https://www.researchgate.net/publication/263280570/figure/fig10/AS:669537691246614@1536641633616/a-c-Indoor-air-concentration-of-carbon-monoxide-CO-ppm-from-burning.png)
2a-c. Indoor air concentration of carbon monoxide (CO) (ppm) from burning | Download Scientific Diagram
![a CO levels in W1 cotinine negative subjects. Exhaled carbon monoxide... | Download Scientific Diagram a CO levels in W1 cotinine negative subjects. Exhaled carbon monoxide... | Download Scientific Diagram](https://www.researchgate.net/publication/342431596/figure/fig2/AS:963403053010948@1606704595583/a-CO-levels-in-W1-cotinine-negative-subjects-Exhaled-carbon-monoxide-levels-parts-per.png)
a CO levels in W1 cotinine negative subjects. Exhaled carbon monoxide... | Download Scientific Diagram
![Profile of carbon monoxide concentrations in ppm for a working day 298 | Download Scientific Diagram Profile of carbon monoxide concentrations in ppm for a working day 298 | Download Scientific Diagram](https://www.researchgate.net/publication/342862382/figure/fig3/AS:911973134921728@1594442747548/Profile-of-carbon-monoxide-concentrations-in-ppm-for-a-working-day-298.png)