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Comment by gonehome | Hacker News Reader

Not the OP, but I tried a bunch of these and wrote up details here: https://www.reddit.com/r/AirQuality/comments/ikf1ed/are_ther...

Most of them (including the awair) are complete crap.

I found one that seems okay and is also one of the cheaper ones.

I use and like this one best: https://www.amazon.com/dp/B07DHXQXGK/

Simple screen with relevant details, no crappy 2.4ghz wifi, no crappy app, etc. it just works.

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Aqmd tested Awair and it came with really good results actually. I’m struggling to find the report online at the moment.

It doesn’t tell you AQI or PM2.5 so it’s results may be consistent but are fairly useless.

I’d be curious what report you saw, last I looked the consistency of the results wasn’t even that great either.

Awair's phone app lists both AQI and PM2.5, and PM2.5 is available on the device itself by pressing buttons to change the display. Somewhat confusingly, the indoor AQI is on the Outdoor tab.

Cool - this must be new?

When I owned one they only had some proprietary quality score and how it related to PM2.5 or AQI was not listed.

This one?: https://www.aqmd.gov/aq-spec/evaluations/summary-pm

Unfortunately no, not this one. I also came across these but I recall a several page long reports for each device individually. Tested in controlled environment and compared with some professional $20k+ sensor. I wish I could deliver better than promises lol.

That looks like the Eve Room https://www.evehome.com/en/eve-room

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