Microporous filter media, filtration systems containing same, and methods of making and using
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United States of America Patent
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Oct 7, 2003
Grant Date -
Jul 31, 2003
app pub date -
Nov 8, 2002
filing date -
Jan 31, 2002
priority date (Note) -
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Abstract
The invention is directed to a microbiological interception enhanced filter medium comprising a microporous structure having a mean flow path of less than about 2 microns and made of an array of active particles. At least a portion of the surface of microporous structure has formed thereon a microbiological interception enhancing agent comprising a cationic material in combination with a biologically active metal. A microbiological interception enhanced filter medium of the present invention provides greater than about 4 log viral interception, and greater than about 6 log bacterial interception.
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