Clean Technology

Again I am surprised by how poor the air is in both Ho Chi Minh City and Hanoi. I expected it to be better in the rainy season. Consistently Shanghai's air has been…

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. Air Quality in Shanghai and Saigon

Anybody in Vietnam interested in low cost air purifiers? I tested this one in Shanghai. Does a good job getting the air below 50 AQI which is a healthy reading. Let me…

I brought my AQI monitor to Saigon. I was curious to see the air quality. Saigon's air is getting worse but I would argue it has always been bad. I still remember my…