The number one cause of poisoning-related deaths in the United States is carbon monoxide, referred to as the silent killer because it is an odorless, colorless gas. Carbon monoxide most commonly escapes from defective or unvented heating sources in the home including gas ovens, water heaters, space heaters, furnaces, wood-burning stoves, and fireplaces. 

To prevent carbon monoxide from escaping from these sources, take particular care to ensure that they are appropriately maintained and functioning properly. DFCS policy states that a carbon monoxide detector is required on every level of a foster home that includes a bedroom or other sleeping area.