Here's a NYT article on the origins of Purple Air. https://www.nytimes.com/2018/11/30/style/air-quality-pollution-monitors.html https://www.nytimes.com/2018/11

Here's a NYT article on the origins of Purple Air. https://www.nytimes.com/2018/11/30/style/air-quality-pollution-monitors.html https://www.nytimes.com/2018/11/30/style/air-quality-polluti... I have a Purple Air sensor; I view the money I spent on it as helping to sponsor a "citizen science" project. Could the nature of the project change in the future, to where I feel like I was taken advantage of? Sure, I guess. But I'm ok taking that risk.