This MIT-designed device can measure air pollution anywhere

You just have to 3D print it first.

If you’re curious about the air quality in your city on a given day, you might pull up your phone’s weather app to see the air-quality index based on various pollutants. But that data, which tends to be aggregated for an entire region, doesn’t tell the whole story of how good or bad the air you’re breathing actually is. Now, you can make your own air-quality monitor instead, using open-source instructions from the Massachusetts Institute of Technology, plus a little coding know-how and a 3D printer.

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