Clarity in Every Breath.
Real-Time Air Quality, Radically Open.
AirCal builds AI-powered PM2.5 sensors on an open-source platform. See the air you breathe, live, with data you can trust.
Why PM2.5 Matters
Microscopic particles in the air can have an outsized impact on our health and environment.
PM2.5 particles are small enough to enter the lungs and bloodstream, posing significant health risks.
Pollution levels can vary dramatically from one street to the next, but data is often not granular enough.
Readings from different sensors can be skewed by local temperature and humidity, leading to unreliable data.
Precision Meets Transparency.
Monitor multi-environment particulate pollution with one powerful, compact device.
AI-Powered Consistency
Our AI compensates for local environmental fluctuations, delivering consistent, reliable sensing anywhere on Earth.
Open Source Hardware
Full transparency, from our data to our device blueprints. Built by and for the community.
Community-Driven Data
Empowering easy, informed decision-making with a globally-shared, open data network.
Our Global Vision: An Open Platform for All.
Our mission is bigger than just sensors. We are building the world's most comprehensive, open-source air quality platform. From our hardware schematics to our live data map, it will be a free resource for everyone.
Recognized by Industry Leaders
Help Us Map the Air We Breathe.
Whether you're a homeowner, a researcher, or a city planner, join the AirCal network and contribute to a healthier planet.