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Wing is a pocket-sized lung monitor

 It has a sensor that works with a companion app to accurately measure two important lung functions: FEV1 (how much air you can exhale in one second) and Peak Flow (how fast you can exhale).
It works on any iPhone 5 or later running iOS 8 (an Android app is in development)and plugs in via the headphone jack. It draws its power from the smartphone, so there’s no charging or batteries necessary and there are no moving parts. The accompanying app allows users to both monitor and collect readings.
It may costs 150$ and be available in 2016.

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