Last week, I got an Ikea Vindriktning PM2.5 particle sensor, which I connected to HomeAssistant. I noticed a huge increase in PM2.5 this morning, after running an ultrasonic humidifier last night (a room away from the sensor). I had no idea those things put out show much white dust... but we have hard water here.

#Humidifier #HardWater #Vindriktning #WhiteDust #HomeAssistant