Category Archives: PM 2.5

Temperature Inversion Pollution in Saigon

This morning Saigon suffered yet another bad airmorning with the AQI (air quality indicator) at 162 (50 AQI and below is healthy). With cooler weather, the air pollution in Saigon tends to get worse in the morning due to temperature inversions. What is Temperature Inversion? Temperature inversion is when the surface air temperature is cooler […]

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Changing BlueAir HEPA filter

You are supposed to change your BlueAir HEPA filter every 6 months. There is a display that tells you when to change it. I decided to see how long I could use my HEPA filter before changing it. I judged the effectiveness using my AirVisual Node. Today my air purifier finally struggled jeep my bedroom […]

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AQBlue PM 2.5 mask

PM 2.5 masks I wear in Saigon (HCMC), Vietnam

I decided to do a post on all of the different PM 2.5 masks that I wear/wore in Saigon the past year. There are a large number of PM 2.5 masks available in both Saigon and Hanoi. Sadly, many are not real PM 2.5 masks nor do they meet N95 or N99 standards. I first […]

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SmartAir DIY air purifier in Saigon with LaserEgg

DIY Air Purifier Bedroom Test (with real person)

At the request of a couple Expats from both Saigon and Hanoi, I decided to do a test of the DIY Air Purifier in my bedroom. My main air purifier since August, 2016, has been the BlueAir 203. BlueAir is a popular brand in Shanghai, China, so it was a good choice for me. When […]

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