Carbon Monoxide Emissions from Gas Ranges and the Development of a Field Protocol for Measuring CO Emissions

Indoor air quality studies and carbon monoxide (CO) emissions testing from combustion appliances have pointed to a number of factors affecting indoor CO levels: source and source-use characteristics, building features, ventilation rates, air mixing within and between rooms, the existence and effectiveness of contaminant removal systems, and outdoor concentrations.1 Gas ranges are used by a significant percentage of the population and, as an unvented combustion appliance, can contribute to hazardous concentrations of CO in indoor air when they malfunction or are misused.