Posted February 10, 2020 https://www.wyff4.com/article/dog-helps-family-detect-carbon-monoxide-leak/30832364?fbclid=IwAR3OCPFdUe1Z7V38-bWJI0glPfRNcHVo_MPdye6lsHX5MnFCEAlI9bYp1f4