Gas and propane stoves significantly increase exposure to nitrogen dioxide in rooms throughout the home, and these unsafe levels of exposure have had harmful effects on the health of tens of thousands of people in the United States,

A study of air pollution in U.S. homes found that households with gas or propane stoves regularly breathe unhealthy levels of nitrogen dioxide.

A study finds that the nitrogen dioxide emitted from stoves impacts the entire home, in some cases hours after the stove was turned off.