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Baghouses
    A baghouse is a dust collection devices that filter air by passing it through a cloth or synthetic fiber media (or bag).  A bag is a long cylinder-shaped envelope that collects dust on its exposed surface.  Baghouses differ not by the method by which dust is removed from the airstream but   rather by the method by which dust is removed from the bag.
    If used in conjunction with a cyclone, a baghouse is used as an after filter and located downstream.  Baghouses are necessary for air filtration, not scrap collection.  Unlike the cyclone, the fine paper dust collected from a baghouse has no value in recycling.  Baghouses are necessary where moderate to stringent emission control measures are in place.  In addition to its environmental value, a baghouse may reduce winter heat loss if conditioned air is passed through the baghouse and recirculated back into the facility.  Unlike a cyclone, a baghouse can support the cleaning efficiency necessary to direct its outlet air back into the plant.