The Xiaomi Particle Counter Is So Inaccurate It Should Not Control the Purifier

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

The Sqair air purifier Kickstarter

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Mine goes down to 1 on heavy rain days when outside air pollution is really low. Usually, it’s around 9/14. I’m in Guangzhou’s downtown, which is way less polluted than Beijing


Hi all,

I am just discovering these analysis, wow, I am impressed.

Do you think there is a way to calibrate a Xiaomi Air Purifier ?

I just received a Xiaomi Air Purifier Pro EU version, and since I started it, it shows 001. I have a netatmo sensor (weather station) which indicates 657 ppm in the same living room.

OK, I live in Paris suburbs in France, it’s quite windy today, my window is opened, but I can’t believe the air is so clean in my apartment.

What do you think ?

Thank you very much.


I got the Mi Air 2s. It sits at 1 microgram when I got it. Stayed there most of the day and I thought it was busy. I did wave something dusty near the sensor and got up to 5. When cooking in an open plan area, filter in lounge, I get a 2. Suspect something wrong here? As you say useless in auto mode. Lucky I have a schedule which can control it to the doped and times I select. Unfortunately there only one speed for user/manual mode.
Otherwise it’s great.


I have the pro and it goes down to as low as 3. I live in Saigon and when I first used it it registered 39 in my apartment which is in the central area and this correlated reasonably well with the AQI reading outside pretty well. I think you guys get too caught up on the numbers. It’s cleaning the air and a positive benefit than not. For around 200usd. If you were paying 5 times that, I could probably understand the complaining.


My 2S is showing 006 (or 005) at startup. Then it does not change whatever the conditions are.
It’s brand new. What should I do ???

In parallel I have bought a cheap (but very efficient) Breathe Fresh + MI Air Quality detector + Xiaomi Smart plug = should be a good alternative 🙂