Air is cleaner in Shanghai than Saigon
Shanghai's air is cleaner than Saigons now.

This is definitely not the norm but right now the air is cleaner is Shanghai than Saigon. I still got my air purifiers going though.

Shanghai's air is cleaner than Saigons now.
This is definitely not the norm but right now the air is cleaner is Shanghai than Saigon. I still got my air purifiers going though.