Two stage air filter

A two stage air purification system is provided for the removal of airborne impurities from an airflow prior to the airflow entering a building's ductwork. In particular, a primary air filter is mounted within the hood of, for example, a cooking area and operable to receive grease-laden air and...

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Bibliographic Details
Main Authors Brownell, Kyle A, Mathews, Scott W, Breitenfeldt, Alan Lorenz, Neitzel, Emery W
Format Patent
LanguageEnglish
Published 07.02.2006
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Summary:A two stage air purification system is provided for the removal of airborne impurities from an airflow prior to the airflow entering a building's ductwork. In particular, a primary air filter is mounted within the hood of, for example, a cooking area and operable to receive grease-laden air and remove a portion of the impurities. The air is then sent to a secondary filter, also mounted within the hood, that removes additional impurities. The air is then sent through the building's ductwork and eventually out the building.