CO poisoning is a medical emergency that can be fatal. Although CO poisoning can happen to anyone, unborn babies, infants, the elderly and those with coronary or respiratory problems appear to be at greatest risk. CO is an invisible, odorless and tasteless gas that results from the incomplete burning of fuels. It can be a by-product of appliances that run on flammable fuel such as gas or oil funaces, water heaters, gas stoves, fireplaces, wood stoves, space heaters, outdoor grills, car exhaust and tobacco smoke.
Homeowners make their homes as airtight as possible for energy conservation purposes.
This can lead to the accumulation of CO, if they are not careful or if a problem exists with the home heating system. CO accumulates in the blood displacing necessary oxygen. At low concentrations, healthy people may experience fatigue. Those with heart problems may feel chest pain. At higher concentrations, people may experience impaired coordination, headaches, dizziness, confusion and nausea.