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
Clean Technology
Recycling in Saigon
You always see workers gathering recyclables in Saigon. There are small privately owned centers in the city. Sometimes you will see workers meet in one area to aggregate what they collected. They will deliver these items just down Vinh Khánh street in District 4. … [Read more...] about Recycling in Saigon
Coming soon: DIY Air Purifier in Vietnam
Nearly ready for purchases. Just waiting on our new fan design and HEPA filters. Currently the unit will use a Senko fan. Senko DIY air purifier with hepa filter. LaserEgg next to it. Coming soon. As of July, 2018, we were not able to register a company to sell HEPA filters in Vietnam. To stay under the radar, it is best to order the HEPA filters directly from SmartAir and … [Read more...] about Coming soon: DIY Air Purifier in Vietnam
More bottled water tests
At the request of people, I decided to do a TDS test of four more brands of bottled water that you can buy in Saigon. Please note, as some people will emphasis, I am just doing a TDS test to decide how pure the water is. For purposes of this test, anything below 50 ppm indicates the water has been purified an "most likely" safe to drink. My last water quality article provides … [Read more...] about More bottled water tests
PM 2.5 masks I wear in Saigon (HCMC), Vietnam
Edit (Feb. 1, 2020): With the coronavirus outbreak in China, this post is getting a lot of hits from Vietnam. First and foremost, PM2.5 masks (actually called respirators) are not a replacement for surgical masks. See this video to learn how to wear a surgical mask -> https://www.youtube.com/watch?v=CWrinkuoljE. --- I decided to do a post on all of the different PM 2.5 … [Read more...] about PM 2.5 masks I wear in Saigon (HCMC), Vietnam