Often preferred by professional chefs and enthusiastic cooks, gas stoves are known to deliver accurate cooking temperatures and do not heat up the kitchen to unbearable levels while in operation. Still they present the potential risk of carbon monoxide (CO) poisoning, if are not properly installed, maintained and operated.
According to a study published in Environmental Health Perspectives in 2013 gas stoves could also give off unhealthy levels of nitrogen dioxide (NO2) and formaldehyde. Emissions of CO and formaldehyde were generally low. But emissions of NO2 may surpass the acceptable limits for outdoor air established by the Environmental Protection Agency.