3 ms·
PurpleAir sensors are pretty good, according to the scientists I’ve talked to (n=3). The outdoor models work inside or out.
by runjake 4y ago
PurpleAir sensors are pretty good, according to the scientists I’ve talked to (n=3). The outdoor models work inside or out.
- S201 4y agoThey do! Although they require a correction factor to better match the government's fancy air quality monitors when measuring smoke. The EPA published a paper on it: https://github.com/shanet/ClearAir/blob/master/docs/PurpleAir%20PM2.5%20Correction%20and%20Performance%20During%20Smoke%20Events.pdf https://github.com/shanet/ClearAir/blob/master/docs/PurpleAi... While we're on the topic: Shamless plug for a PurpleAir clone I made last year that uses the same sensors but at half the cost (and keeps all of the data within your LAN): https://github.com/shanet/ClearAir https://github.com/shanet/ClearAir and https://www.digikey.com/en/products/detail/adafruit-industries-llc/4632/12715744 https://www.digikey.com/en/products/detail/adafruit-industri...
- runjake 4y agoSo fantastic, thanks for the reply!