My understanding, from something I’d read previously, was that no2 was not a big concern, and that amongst sources of no2, gas ranges were less of an issue than heaters and water heaters.

What I know is that no2 is higher outdoors. I just wonder if the danger isn’t being overstated, relative to other dangers.

For the record I favor a law requiring venting in rental units and new home construction. I wish that was what got passed because it seems like the health impacts of nonventilated cooktops of any sort, including electric, is a larger concern.