Carbon monoxide is a colorless, odorless gas produced by the incomplete combustion of fuels such as wood, gasoline, or natural gas. It is commonly associated with malfunctioning heating systems, vehicles, or portable generators. Exposure can lead to headaches, dizziness, or fatigue, and in severe cases, can be life-threatening. To prevent risks, homes and workplaces should be equipped with carbon monoxide detectors, and fuel-burning appliances should be regularly maintained. Public safety campaigns emphasize proper ventilation and avoiding use of outdoor equipment indoors. Carbon monoxide is not intentionally added to consumer products and is strictly regulated in industrial and transportation settings to protect public health.