Germ-removing filter and apparatus for maintaining sterile room under sterile condition
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Mar 5, 1996
filing date -
Mar 6, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A germ-removing filter includes a filter substrate, and an antimicrobial material dispersedly mixed into the filter substrate. The antimicrobial material is antimicrobial fiber bonded with silver ion. The total amount of the silver ions present in the filter substrate material when mixed with the antimicrobial fiber is equivalent to an amount of silver ions contained in an antimicrobial fiber which is mixed at more than 10 wt % in the filter substrate and which has entire exchange groups or bonding groups thereof exchanged or bonded with silver ions. An apparatus using the filter for maintaining a sterile room under sterile condition is also disclosed.
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