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AAF International

Marketing globally under the AmericanAirFilter and AAF brand names, AAF International is a division of AAF-McQuay Incorporated. McQuay International is a worldwide manufacturer of commercial air conditioning equipment.

AAF-McQuay is a member of the Hong Leong Group Malaysia, a multinational conglomerate involved in financial services, real estate investment, and the manufacturing and distribution of a wide range of industrial, consumer and high technology products. Founded and headquartered in Lousiville, KY, AAF is one of the world's largest manufacturers and marketers of air filtration, dust collection, and air pollution control products and systems.

With production facilities located worldwide, AAF offers some of the most comprehensive manufacturing capabilities in the industry. We place great emphasis on research and development to meet the increasing demand for cleaner air. Many of our facilities are ISO certified. ISO certification ensures our customers receive consistent quality in every product we supply.

Many years ago, AAF adopted the slogan, Better Air is Our Business , to simply state our purpose. Better Air is just applicable today as it was in 1921, when William M. Reed discovered the solution to dirt settling on his freshly painted automobiles. His "filter" discovery, consisting of steel wool and chicken wire, was so successful that he soon stopped painting automobiles and began selling filters.
The same pioneering spirit that led to the formation of the original American Air Filter Company over 80 years ago is still alive today. You, your parents, and your grandparents have most likely breathed air cleaned by AAF products. Today, AmericanAirFilter and AAF brands are recognized throughout the world as the most trusted names in clean air and a symbol of excellence.


AAF offers a competitive compensation and benefits package that includes medical/dental/life/short and long term disability/401K.


AAF has provided high quality high efficiency particulate air (HEPA) filtration products, filter houses, and cooling coils to the worldwide nuclear industry's power plants and fuel processing plants for over 30 years. Many of the technologies and systems which are used to provide cleaned and tempered air for environmental safety systems were developed by AAF. The Three Mile Island Reactor Containment Coolers were designed and made by AAF and operated successfully during and after the accident.

AAF specializes in air cleaning systems that handle toxic, hazardous, and radioactive gas streams. We provide HEPA filtration systems that remove contaminants so that discharge can be safely used or blended into the atomsphere. Bag In/Bag Out systems are also available.

All AAF products meet all of the required US government and industry codes, specifications, and qualifications. Listed below are links to the most frequently requested air filters, housings, and cooling coils used in the nuclear industry. In addition, we also offer ASHRAE prefilters for specific applications.

HEPA Filters
Types II and III Carbon Filters and Systems
Nuclear Cooling Coils