Dylos DC1100

How accurate are common particle counters?

ओह! यह पोस्ट हिन्दी में उपलब्ध नही हैं।अंग्रेजी संस्करण के हेतु यहाँ क्लिक करे l

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New test coming soon? Awair (second), Air Ae Steward, IGERESS, Foobot etc etc. I would even pay more for a good product but there are almost no labor test to find. So many products and no tests.


Hi everyone. My daughter and I were so happy to meet everyone when we picked up our DIY a couple months back and now we are also the proud owners of a canon as well.

I was wondering if you plan to review the new Laser Egg 2 upgrade with the VOC sensor. I really want to grab a laser egg but if the upgrade works reasonably well, I’d prefer to have that one. Unfortunately, I can’t find anyone who has put it through its paces yet.


Hi. I’m confused by the conversion formula you use for the Dylos. Are you using the actual particles per cubic foot (the displayed numbers multiplied by 100), or the displayed numbers themselves. I’m referring to a DC1100 PRO. If the left displayed number is, say, 150 and the right number is 20, what does that equate to in PM2.5 micrograms/cubic meter?

I’m a novice is this field, and basically am trying to figure out what readings are “good” for a residence. Thank you.



Can you recommend a cheaper version? I don’t want to spend more than $50.

[…] Some brief history. Prior to 2007, a decent particle counter cost thousands of dollars, and a cleanroom-quality counter ran $10K or more. Then this little company came out with this device, and various labs started comparing it to their research-grade equipment, and found… Hey, it works pretty well for a sub-$300 gadget. Many amateurs use the Dylos as their “trusty” golden reference. […]


I am looking forward to the next test of air quality monitors, will it be available soon?
It would be great if you added dB measurements to the descriptions of Original and Cannon purifiers.
Also, how much is shipping to Denmark, by air or sea for a Cannon + 3 filters?


Thanks for making this really good review of those three particle counters. I would appreciate it very much if you could also test Xiaomi’s PM2.5 Detector:


“Since then, the market has exploded with new particle counters as cheap as 99 RMB. But are they any good?” Although I came here to look up your results on the Node… I must admit this line got my attention, and I was a little disappointed to not hear anything about anything in *that* price range. I’m on a budget here in Beijing (which is why your product appealed to me in the first place) and I’m *really* eager to find out anything (even less comprehensive) that you could say about the reliability of the cheaper stuff! When will you… Read more »