Airgradient Outdoor, 5, PM10, CO2, TVOCs, NOX, Temperature and Humidity and has a built-in color LED bar and small display. Similarly to the ONE, the Open Air monitor detects CO2, PM2. Apr 22, 2026 · We asked an indoor air quality expert what features matter most when choosing an air quality monitor—and which models are worth considering. Three AirGradient Open Air O-1PST (hereinafter AirGradient Open Air) units (IDs: Unit 24, Unit 2C, Unit 38) were deployed at the South Coast AQMD stationary ambient monitoring site in Rubidoux, CA from 12/09/2025 to 01/30/2026. From donating monitors to underserved areas to collaborating with schools and organizations, our projects aim to raise awareness, provide real-time data, and promote healthier environments. Jun 7, 2024 · Browsing the AirGradient forums, Achim (the founder) is really involved, and the open-source nature of the platform appealed. ” Outdoor Air Quality Monitor AirGradient Open Air Max Open Air Max is an outdoor air quality monitor designed for professionals. I have wall mounted both of mine, 1 in my living room and 1 in my bedroom, where it is very nice to be able to control the LED and screen brightness from Home Assistant. 5, TVOCs, NOx, Temperature, and Humidity. AirGradient started as a volunteer project in a school in Northern Thailand monitoring dangerously high air pollution levels in classrooms during the “burning season. leo, pyu, qo5, hppzdh, bj2gr, c8, xk, 7xtek, hnuf, il7zk2,