I wonder how this works in places like my family home in Colombia. There's municipal gas distribution for gas stoves. An electric stove for the majority of the population involves a prohibitive cost, both initially when buying the stove and ongoing, due to electricity costing much more than gas.

On the other hand, houses over there tend to be open to the air, where vents are not even needed because there's very little separation between the air inside and outside.

And I wonder if the stove gas used varies a lot between places and how that might affect the presence of benzene.