cooking exhaust is a surprisingly big problem too --- you'd never think of it until you live in a place full of 50-story apartments I was in HK only once, for

cooking exhaust is a surprisingly big problem too --- you'd never think of it until you live in a place full of 50-story apartments I was in HK only once, for three days, so my experience is extremely limited. But it was my understanding that the local culture doesn't do a lot of cooking in the home, they generally eat out. The one apartment that I saw didn't even have a real kitchen.