IKEA VINDRIKTNING air quality sensor cover
I have several VINDRIKTNING sensors at home which are connected to an ESP8266.
They're sending the PM2.5 value to an Influx Database. I'm using Grafana to visualize this data, so I don't need the LED indicators.
Unfortunately you can't disable them easily, that's why I designed and printed this cover.
It blocks 100% of the LED's light (tested with black PLA).
You don't need supports for this simple design.
I recommend printing it upside down (visible surface on print bed).