Air Quality Monitor Indoor air Quality Monitor for Cars,Home,Office,Hotel etc (PM2.5,AQI)

PM2.5 at zero PM10 at zero .. and in a dusty environment it simply doesn't work

Obviously I have no way of knowing quite how accurate this is, but it is certainly sensitive and shows instant changes when I use any woodworking machinery in my workshop. Plus it shows steadily reducing readings as my air filtration system cleans the air. So all in all it is genuinely useful as it reminds me to both check the air quality and put on my face mask. At my age, 77, sawdust is unlikely to give me cancer, but it can certainly interfere with my lungs and I do not want that! I have bought a second one for another workshop

It reads particle count and it does it well. The exterior readings align with my weather forecast and I see near immediate changes when I start generating dust. I think it does use an averaging function over time. I have seen a few odd spikes, but otherwise I have come to trust its accuracy. That's it. It's very small very easy to plug and go. I put magnets on the back to attach to my breaker panel in my shop. This does not try to be very complicated, so find other products at a higher price point if you want customization, bluetooth or data recording.

I got this meter to check on dust levels in my woodworking workshop. The meter is sensitive, reacts quickly to changes in dust level, and seems to show that the dust extractor is effective. The indicated level goes very high if I don't have the extractor running, but down to zero soon after I turn the extractor on. I don't know how accurate the readings are, and zero seems a bit suspicious, but it does show that the extractor makes a real difference. The only thing I don't like about the meter is its 'open' construction. Maybe it is designed to be built into a box of some kind. But it seems fine just sitting on a shelf.

Very nice little toy to measure your indoor air quality. I have nothing to compare with, but the numbers look pretty accurate to me.