“As for where to place the device, (NFPA) offers this guidance: ‘Carbon monoxide is the same composition as air, so placement varies by manufacturer, but does not need to be installed like a smoke alarm. You can place it on a dresser in your sleeping room to provide protection. If you use a plug-in alarm, it would be best to plug it into an outlet that is as close to where you’re sleeping as possible.’”

Why Experts Say To Bring a CO Detector on Your Vacation