@ingrid1947 What advice? Yes, the byproducts of natural gas combustion can are not ideal, but we cannot eliminate every risk, and retrofitting is not always feasible. And one would need to not only replace the gas range, but the furnace, water heater and clothes dryer.

We mitigate the risk by running an exhaust fan while cooking, and the other appliances are isolated in a separate room with its own fresh air intake.

For us, conversion is not an option, and even if we did it, we would simply be replacing indoor pollution with outdoor pollution since our electrical grid is 90% powered by natural gas. If every home in our area switched to all-electric, we would overwhelm the power grid.

In Dr Honda's heirarchy of things to be concerned about, cooking with gas falls very far down the list.