Carbon monoxide, or CO, is a colorless, odorless, toxic gas. It is produced by the incomplete combustion of solid, liquid, and gaseous fuels. Appliances fueled with gas, oil, kerosene, or wood may produce CO. If such appliances are not installed, maintained, and used properly, CO may accumulate to dangerous and even deadly levels in cars, homes, or poorly ventilated areas.
Although not always experienced, the initial symptoms of CO are similar to the flu (but without the fever). But it can also mimic other ailments like gastric flu or stomach upset, the symptoms include:
Next to prevention of the production of toxic CO gas, the best defense against this deadly killer is a CO alarm. These devices can detect toxic concentration of CO in the air, sound an alarm, and thereby save lives.
Carbon Monoxide Alarms should be replaced every 5-7 years.