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American Air Filter International
American Air Filter International





We offer clarity in the quest for cleaner air. AAF provides trusted products that are the result of more than 100 years of experience and innovation in commercial air filtration. Browse these categories to find advanced solutions to meet your clean air challenges.

Gas Phase Filtration

HEGA Filters

AAF offers High Efficiency Gas Adsorber (HEGA) filtration to filter gaseous contaminants from airstreams through a process of adsorption. Typically used by the nuclear industry, HEGA systems are often installed in a walk-in bank. The HEGA system’s adsorber must be able to provide a 99.9% minimum mechanical efficiency.

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