Carbon monoxide (CO) is a colorless, odorless, tasteless, highly toxic gas that is undetectable to the human senses. Because of this, victims may become disoriented and unable to call for help or to get out.

PREVENTIVE STEPS
Home Appliances

• Inspect and service heating and cooling systems.
• keep fireplace flue open for adequate ventilation and until embers are completely burned out
• Examine chimneys and vents
• Never install or operate gas burning appliances, furnaces or water heaters in unventilated enclosures.
• Never use a gas range or oven for heating the home
• Check water heaters for improper burner adjustments
• Check flame for a good blue flame
• Never use unventilated appliances (Heaters,  Lanterns,  etc.) in sleeping areas
• Do not store propane tanks indoors
• Even with the doors open do not use BBQ grills indoors
• Never use generators indoors always have them on the exterior of the home
• Keep generators and all gas powered equipment away from windows and doors

Motor Vehicles

• Never sit in a vehicle idling with the windows up
• Never leave vehicle idling in garage without garage door open and well ventilated
• Never leave your child in a vehicle idling
• Have exhausted system checked for leaks and damage
• If you smell any fumes or unusual smells have vehicle checked
• Never allow anyone to ride in the back of an enclosed pickup truck.

Boating Dangers

• Stay away  from any watercraft exhaust
• Never sit on or hang out on swim platforms if the motor is running
• Have annual inspections on boat exhaust
• Know the proper safety procedures relating to houseboats
•         Install a working carbon monoxide detector

For more information NFPA Web site