rcmmnds
16 in 1 Air Quality Monitor Indoor 7" Display 9 AQI+7 AQI Alerts Air Quality Meter for CO2, TVOC, PM2.5 PM1.0 PM10, HCHO, Temperature Humidity AQI & Time, Air Detector Air Quality Tester for Home

16 in 1 Air Quality Monitor Indoor 7" Display 9 AQI+7 AQI Alerts Air Quality Meter for CO2, TVOC, PM2.5 PM1.0 PM10, HCHO, Temperature Humidity AQI & Time, Air Detector Air Quality Tester for Home

comments:

AlchemistCamp (1) on hackernews3w
Buy an air quality monitor. There are tons on Amazon. Here’s an example: https://www.amazon.com/dp/B0DZHJSQ7Z/