Saigon air better than Shanghai now
Saigon's air quality is better than Shanghai's today.
Well, with winter coming to Shanghai soon, I was warned that the pollution of the air will get worse. Though I am not in Shanghai now, the air is quite bad. I will probably need to wear my mask there when I return Sunday.
I brought some 3M PM2.5 masks for a friend. I will bring more and some air purifiers next month to Saigon.
Hanoi’s air is terrible.