ASPINWALL (KDKA) -- Carbon monoxide can be a silent killer, especially in the winter when most exposures happen, according to Johns Hopkins Medicine. "People are unaware of it – they go to sleep ...

Carbon monoxide poisonings increase in the winter. It's known as the invisible killer, because it's colorless and odorless.

One of the most common forms of carbon monoxide exposure occurs through unvented space heaters. This is due to the fact that unvented space heaters use combustible fuel as well as indoor air for ...

Syracuse, N.Y. — A food warmer in the Syracuse Academy of Science kitchen was identified as the source of high carbon monoxide levels Tuesday that sent five people to hospitals, school officials ...