Fresh air filter
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United States of America Patent
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Jun 11, 2002
Grant Date -
N/A
app pub date -
Mar 16, 2000
filing date -
Jun 27, 1997
priority date (Note) -
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Abstract
The present invention relates to a fresh air filter that comprises a highly air-permissive two- or three-dimensional support made of a cross-linked polymeric foam which includes pores of large dimensions. The support comprises joining portions which are coated with a layer of ion-exchange globules.
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