> So should I believe you or my own lying eyes? That's a question only you can answer. > But clearly some setups are less problematic than others and it's not

> So should I believe you or my own lying eyes? That's a question only you can answer. > But clearly some setups are less problematic than others and it's not the case that everyone is poisoning themselves unless they go buy an electric tomorrow I didn't say everyone should go electric tomorrow. But people are exposing themselves to (IMO high) indoor air pollution by using gas stoves without running an extractor fan and opening windows. A lot of people (everyone I know at least) only run the extractor to get rid of food smells, not for natural gas combustion byproducts, which is a mistake.