I picked up one of these recently, and it seems to work quite well. https://www.amazon.ca/Detector-Quality-Monitor-Lightweight-Anywhere/dp/B0B2VGJ8Z7/ref=sr_1_1

I picked up one of these recently, and it seems to work quite well. https://www.amazon.ca/Detector-Quality-Monitor-Lightweight-Anywhere/dp/B0B2VGJ8Z7/ref=sr_1_1 https://www.amazon.ca/Detector-Quality-Monitor-Lightweight-A... I don't have it on all the time or anything, but is certainly interesting to spot-check my indoor air quality.