How Long Does It Take for Carbon Monoxide to Leave the Body after a Cigarette?

Answer

It takes 12 hours for carbon monoxide to leave the body after a cigarette. This is true if you donÕt smoke another cigarette during the 12 hours. The noticeable changes begin at least 20 minutes after your last cigarette.
Q&A Related to "How Long Does It Take for Carbon Monoxide to..."
Clogs and kills the tiny air sacs in the lungs.
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Once removed from the source of carbon monoxide,
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The body looks dead. However, if you were to examine the blood it may be bright red, a cherry color.
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The time it take for CO to leave the body after they stop smoking varies from person to person, but on average it takes approximately 3 hours. Source(s) The American Heart Association
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It takes approximately two days for the chemicals from cigarette smoking to leave your body. The physical need for the cigarettes is also broken after 2 days but ...
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