http://chicago.cbslocal.com/2014/02/25/will-your-detector-protect-you-from-carbon-monoxide/
CBS Local, on Tue, 25 Feb 2014 19:56:15 -0800
(CBS) – With enough exposure carbon monoxide can be deadly. We saw that last month in an Oak Brook home where one man died and seven women were sickened after a CO leak. When firefighters got there, levels were already at 1,000 parts per million. Read the rest of this entry…..