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pm2.5

Changing BlueAir HEPA filter

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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 below 50 AQI. Hence I changed the filter today. Below is my HEPA filter … [Read more...] about Changing BlueAir HEPA filter

Air Quality in Thao Dien

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The perception of many in Saigon is that the air quality in Thao Dien is better than District 1. In fact, at noon today the air quality in Thao Dien was the same as in District 1. I used a Air Quality Monitor to get the reading in Thao Dien and then converted it to AQI. A 104 micrograms PM2.5 gave me a measurement of 174 AQI. Very unhealthy air. … [Read more...] about Air Quality in Thao Dien

DIY Air Purifier Bedroom Test (with real person)

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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 I moved back to Saigon, Vietnam, I brought my BlueAir with me.   I also started using the … [Read more...] about DIY Air Purifier Bedroom Test (with real person)