Every Breath Counts.
Clean air is as essential to life as H2O. BreathAir.Today educates, inspires, and empowers communities worldwide to protect the air we share.
A world where every community breathes freely
Through science, education, and community action, we equip people with the tools and knowledge to protect the air we all depend on.
Educate
Free curricula, calculators, and interactive tools that make air science accessible.
Empower
Community challenges, citizen science, and local clean-air projects worldwide.
Inspire
Stories, data, and campaigns that prove every individual choice matters.
The BreathAir Simulator
See how cars, factories, power plants, trees, and renewable energy shape the air around you — in real time. A science-based tool for classrooms, families, and policymakers.
- ✓ Compare gasoline, hybrid, and EV emissions
- ✓ Visualize PM2.5, NOx, CO2, and ozone
- ✓ Simulate trees, solar, and clean transit
- ✓ See health impacts on lungs & heart
What we stand for
Join the movement
Whether you volunteer, learn, or simply share what you discover — every action makes the air a little cleaner for everyone.