I got the @airthings Plus (unaffiliated, I just like the product), I think @norbertdragan recommended it I been through so many air sensors, and I really think this is the best one so I bought one for living room and then another one for bedroom, and will get another one for my coworking Why so many? Well one of the sensors I bought turned out to be a fake random number generator 😂 Another one kept phoning home to Chinese servers, kinda dodgy. Another one had values that made sense but turned out to be based on kinda estimating from other sensor values, so it didn't actually HAVE the sensor it displayed about (this is common to save money) Why the Airthings is so great: - The device is just super thoughtful and non-invasive, the screen is e-ink (I think?), no backlit, no LEDs shining at you, just black and white, it looks like a paper screen, beautiful, it knows its place! - It measures A LOT of things: AQI (PM2.5+PM10), CO2 (!), VOC, Radon (!), humidity and temperature, and it actually has sensors for all! - You don't need to pair it to WiFi, it just works by itself! (why is this great? So I remember getting that Awair sensor and I was in a hotel nomading and I couldn't even set it up cause captive hotel portal, such an Internet of Shit design to not be able to set up without WiFi) - But when you do pair it with WiFi, it easily connects to your Home Assistant and sends your sensor data to HA without any issue, that lets you automate stuff based on your air quality I love it :D