AAF INTERNATIONAL is one of the world's largest air filter manufacturer and distributor. Its products are distributed under the trade name of American Air Filter and AAF brand. AAF has the world's leading purification techniques and latest research on high technology products. AAF's products include commercial, industrial and residential air purification; air pollution control systems and gas turbine filtration which were used globally in the electrical, pharmaceutical, hospitals, automotive and material processing industry.

AAF International was founded in 1921 in Louisville, Kentucky by Bill Reed. For more than 80 years, AAF has expanded globally and maintains operations in 22 countries with more than 2, 600 workforces worldwide. AAF is supported in its international ventures through the resources of its parent company OYL Industries Berhad, based in Malaysia. OYL is owned by Daikin Industries Ltd., Osaka, Japan, a diversified international manufacturing company and a global leader in air conditioning.