Plugged air vent left his house filled with carbon monoxide

A Prince Albert, Sask., man says he's lucky to be alive after a plugged air vent left his house filled with carbon monoxide. Orville Andres is fine now, but for about a week, he and his wife weren't feeling well. She was getting bad headaches and he ...

http://www.cbc.ca/news/canada/saskatchewan/story/2011/03/02/sk-carbon-monoxide-scare-1102.html