If you are concerned about carbon monoxide in your home then the smartest thing you can do is to buy a few carbon monoxide detectors and have a licensed Company install them for you, they will put them throughout your home. They are well worth the expense because they can save lives. Most reputable air conditioning contractors have carbon monoxide meters and almost all gas companies have them as well. We recommend that a licensed air conditioning company come to your home and measure the carbon monoxide levels and check your furnace to make sure that there is no leaks in your system.