4 ms·
For some context, PurpleAir also uses Plantower dust sensors. As an alternative, there's also the Honeywell HPMA sensors (used in Awair).
by Scene_Cast2 5y ago
For some context, PurpleAir also uses Plantower dust sensors. As an alternative, there's also the Honeywell HPMA sensors (used in Awair).
- philips 5y agoIt is too bad that PurpleAir doesn’t do CO2 last I looked. I really want a single device.
- Scene_Cast2 5y agoMy old Awair has a Telaire T6703 CO2 sensor; the newer ones probably have something similar. I also had a standalone sensor at one point, they're a thing too. And Tindie has a slew of ready-to-order air quality stations too.
- philips 5y agoHave you had a good experience with Awair? The last time I looked it seemed like they had no recommended way to clean the sensors. And in my limited experience PM2.5 sensors do need periodic cleaning to remain accurate. My air filter has one and the manufacturer recommends a bit of alcohol and a puff of air.
- Scene_Cast2 5y agoTheir old one had an issue with the dust sensor clogging. The new ones use the Honeywell sensor. It has a tiny fan on it (inaudible in a quiet room from 5 inches away); mine ran well for a couple of years until I knocked it off my desk. After that, the fan started rattling, so I ordered another Honeywell sensor ($40) and replaced it (no soldering required, just a screwdriver). That sensor's datasheet doesn't have any cleaning instructions, so I don't think it's a big issue.
- philips 5y agoOk thanks