Gargling cup, antiviral mask, antiviral filter, antifungal, antibacterial, and antiviral filter air cleaner and air-cleaner humidifier
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United States of America Patent
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Mar 30, 1999
Issued Date -
N/A
app pub date -
Apr 25, 1997
filing date -
May 11, 1995
priority date (Note) -
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Abstract
The present invention provides for an antifungal, antibacterial and antiviral filter comprising in laminations a dust collecting filter and a filter impregnated with a tea extract. The filter having nonwoven fabric is impregnated with a polyphenol tea extract, which can be easily produced commercially and is capable of maintaining a high virus trapping performance, inactivating the trapped viruses and preventing them from being rescattered.
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