In some podcast someone mentioned that in (some) asian countries it feels like air conditioning in public transport is build to ensure quick and regular air exc

In some podcast someone mentioned that in (some) asian countries it feels like air conditioning in public transport is build to ensure quick and regular air exchange. And it would absolutely make sense, as they are way more used to these sort of problems than "the west". And also have generally higher population density. Might this also be true for Tokyo?