Unlike your everday LPG gas tank, carbon monoxide is odorless. you won't know its there, it'll lull you to dreamland before taking your breath away. This practice of long idling is most dangerous in a close garage, whether in your home or as I've noticed in motels. Also in covered parking lot like in malls and office buildings. Remind me of a singer who lost her Dad and, if my memory serves me right, left her brother an invalid due to this practice.





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