A new DIY-project: Connect an air quality sensor to Apple Homekit via Homebridge and ask Siri how the air quality in the bedroom is!
All tagged particle sensor
How to build a Raspberry Pi Air Quality Station
How to put together an air quality station that can measure AQI values for PM2.5 and PM10 and send this together with temperature, humidity and pressure readings from a SenseHat to freeboard.io.