When HN users recommended it
2 HN users recommended this in 2019, in 2 comments.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
2 HN users recommended this in 2019, in 2 comments.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
The meter is this one: https://www.amazon.com/Air-Pollution-Formaldehyde-Detector-T...
After these words I'm seriously starting to doubt the correctness of the device. I can't believe I wasn't able to find any indoor location with a low enough concentration for below 0.1 ppm, or only outdoors. I mean, these are rooms where I, my colleagues, friends and family are non-stop, we should all be good as one by now with those concentrations.
There are many devices out there on amazon, since formaldehyde inside your house == bad is a chinese health meme where air meters will measure it specifically.
https://www.amazon.com/Air-Pollution-Formaldehyde-Detector-T...