[dxhdr]

Good question, I bought a Dylos back in 2015 and can't remember how the other options stacked up when I researched it. I've been happy with the purchase and would recommend it if you're interested in watching air quality. It has a convenient "monitor mode" where it will re-sample the air every hour so it's not constantly running. It's neat to see how the air quality in a room changes based on having the windows open or shut, after cooking, just being in the room, etc.

I'd expect there are smaller / sleeker / more advanced monitors out now though. Generally speaking I think you want a laser detector instead of the cheaper infrared detectors.

[criddell]

I found this link with test results:

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