| 摘要 |
An exterior duct filter retainer used in connection with a heating and air conditioning vent, the duct filter retainer including a filter body constructed of a material that is air permeable yet catches particles exiting the vent, the filter body having a an attachment assembly connected to the filter body; the attachment assembly being adapted to attach the filter body such that the filter is against and/or in registry with the vent. The filter body can be flat, and the attachment assembly can use a variety of means to attach the filter body in registry with the vent.
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