Clean Technology

It has been awhile since I last posted at this blog. With the new cooler weather in Saigon, the cooler morning temperatures mean early morning PM 2.5 levels are…

For those living in Saigon the last several years, it is becoming a norm to deal with rising air pollution as Autumn arrives. This year, in particular, the levels of PM…

Saigon had a huge downpour today. For some odd reason I decided to see what the water quality of the rain was. Since the rain was quite heavy, I was able to get a cupful…

For those living in Saigon long-term, it is natural to have concerns over the quality of the drinking water in the city. When I first arrived to Saigon in 2004, you…

A couple weeks ago I dropped by Kawasaki Maxmoto. During my wait I got to see the Vinfast Klara for the first time. This is the first electric bike produced in Vietnam…

This morning Saigon suffered yet another bad air morning with the AQI (air quality indicator) at 162 (50 AQI and below is healthy). With cooler weather, the air…

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…

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…

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…

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…

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…

Took these readings in Duc Hoa just outside of Ho Chi Minh City in the Long An Province. Duc Hoa Tap Water The tap water was at 167 ppm. With the pollution and water…

Update: You can purchase a TDS water quality meter at Lazada. Last week I checked the water quality again in my apartment building. I have done it once in the past, this…

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…

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…

With my BlueAir Air purifier, my room always has good, clean air. I brought this from Shanghai to Saigon. No regrets. The air quality shows for it.

Yesterday several people reported that they felt the AQI reading for Saigon was not accurate. They felt it was too low. Check the reading below : In fact, this was a…

Currently the air is at 127 AQI for PM2.5 in District 4 of Saigon. Looking at the picture below, you can tell it is much higher in Phu My Hung (District 8). As usual…

Last week I conducted several tests with my DIY Air Purifer with a SmartAir HEPA filter and Vietnamese fan. The results of testing two rooms at 40 square meters was…

Yesterday my portable solar panel was returned to me. I will use it to power my AirVisual Public Node in the future. In the meantime it is powering my LaserEgg.