Last week, Saigon woke up to unhealthy air measuring 156 AQI at the US Consulate or roughly 65 micrograms. This gave me an opportunity to test my SmartAir Original DIY fan and HEPA filter in my other room. As you can see from the photos below, LaserEgg gave an AQI reading of 95 or 32 micrograms. The safe US levels are 12 micrograms so my room was 3 times above the safe … [Read more...] about Four hour test of SmartAir Original DIY air purifier in Saigon (HCMC)
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