The best method of detection is to use a carbon monoxide detector indoors. A carbon monoxide detector is a device very similar to a smoke alarm. It monitors the air for carbon monoxide and sounds an alarm if a specific level is detected. Ideally, you should have one detector adjacent to every living area, centrally located, or on each floor in your home. Carbon monoxide detectors are most effective when used in combination with a service plan. Call 865-229-6176 for more information about purchasing a carbon monoxide detector.