A member asked:

How long could carbon monoxide last in the system?

A doctor has provided 1 answer
Dr. Donald Alves answered

Specializes in Emergency Medicine

Depends on amount,: But, roughly one week if breathing room air, about 6-10 hours if breathing 100% oxygen, and even shorter if provided hyperbaric oxygen treatment (which is 100% oxygen at 2-3 times usual atmospheric pressure).

Answered 9/8/2013

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