Air Quality Devices – The Complete Comparison (updated)


There are so many devices out there to measure air quality nowadays and the informations are sometimes confusing about what each device is armed with or not. As a result here is a complete guide to choose the right device for you and your needs.

  • Prices may vary during time.
  • Some Companies don’t specify on their data sheet if their devices are capable to measure PM2.5 or PM10 and they just mention the word dust.
  • Some other companies say: Our product goes beyond CO₂ by analyzing substances that directly affect your well-being by measuring VOCs. They aren’t clear if their devices have CO₂ sensor.
  • The classification of the design between Bad, Good and Very Good is based on the materials (plastic, wood, glass and metal) that they have used and the aesthetic on my personal opinion.

8 thoughts on “Air Quality Devices – The Complete Comparison (updated)

  1. Hello,

    Design in one thing, accuracy is another.

    When using some kind of sensors, you detect particle size with no difference between several gases. This could be dengerous (even deadly) if you rely on those device for your own safety. Also devices laking calibration that gives ppm or ppb have the same bias.

    For consumers it should be made this clear for they do not pay for a nice design with a near useless device.

    Liked by 1 person

    • Hello Emmanuel, thank you for your comment. Yes you have absolutely right about accuracy although the majority of these devices are for home use where hopefully data aren’t so critical. Now, maybe these home devices have to present data with AQI indexes and not ppm and ppb or maybe companies have to be more serious about them. I saw that you build an Air Quality device with andruino, would you like to tell me more about it?


      • Hello,

        the real AQI would mean more sensors as they can afford, some already try to sell their own AQI index which will result in a misunderstanding of the Public that may already have information from official calbrated stations…

        this is an interresting world, but marketing may be too much trying to hide the gap…


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