Celebrating 100 YEARS


Please join us as we proudly look back through a century of air filtration innovations and into the future of clean air solutions for all the places you work, live, and play.

We Bring Clean Air to Life

Reinventing Air Filtration

We’re the world’s largest manufacturer of air filtration solutions. AAF International offers fully comprehensive, innovative solutions for protecting against airborne particulates and gaseous contaminants in commercial, industrial, and residential applications.

First founded in 1921, in Louisville, Kentucky, our company today operates in 22 countries across four continents.

Our Commitments and Insights

The lessons learned and success earned through a century of innovating filtration technology have forged a strong foundation for working with purpose and determination.

Three Key Divisions

AAF offers air filtration solutions for your home, for commercial environments, and for heavy industrial facilities. Early on, we realized the importance of clean air in the places where people live, work, and play. To address these unique, everyday spaces and the people who live within we established three divisions for solution development.

Caring for Our World

We’re committed to creating healthy environments throughout our world and have a longstanding record of giving back and participating with people and their communities. Please join us in celebrating the many ways AAF has made this positive impact.

Our Future Focus

As we celebrate our first 100 years and look toward the future, we envision a pathway forward into meeting new demands for clean air and mitigating the risks of airborne pathogens. We encourage you to come and learn how we’ll innovate our technology, products, and manufacturing processes to better serve the planet.

Our Blog

AAF International experts share their perspectives and vision into indoor filtration solutions and innovation for cleaner air, today and tomorrow.

Learn More About AAF

Visit our main website and learn more how AAF International offers comprehensive, innovative solutions for commercial, industrial, and residential applications. Learn how we’re reinventing how people think about clean air.