Filter and filter media
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United States of America Patent
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N/A
Issued Date -
Mar 13, 2008
app pub date -
Sep 12, 2006
filing date -
Sep 12, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
One aspect of invention is a filter media for use in a filter having an upstream surface relative to normal airflow through the filter media and an opposite downstream surface. The filter media includes a substrate material selected from the group consisting of nonwoven porous synthetic material, cellulose, and combinations thereof. The substrate is adapted to be positioned in the filter media as the upstream surface. A layer of meltspun fine fibers engaged to the substrate. At least about 85% of the fine fibers have diameters less than 1000 nanometers in diameter. The layer of meltspun fine fibers is adapted to be positioned in the filter media as the downstream surface.
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