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US 9,427,691 B2Granted
Antimicrobial air filter
AssigneePTI Technologies, Inc.
InventorsMichael L. Gao, Kanwar Suri
Life of this patent
Estimating the term…
Abstract
A microbial resistant air filter is disclosed. The microbial resistant air filter has air filter media having first and second antimicrobial agents. The first antimicrobial agent is diiodomethyl-p-tolyl sulfone and the second antimicrobial agent is a combination of zinc omadine and thiabendazole.
Claims6
An air filtration media comprising:
- a porous media having a first antimicrobial agent which is diiodomethyl-p-tolyl sulfone in contact with the porous media and having a concentration between 150 parts per million and 250 parts per million, and a second antimicrobial agent which is a combination of zinc omadine and thiabendazole in contact with the porous media and having a concentration between 350 parts per million and 450 parts per million.
A method of preparing a filter, the method comprising:
- contacting a porous media with a first solution comprising a first antimicrobial agent which is diiodomethyl-p-tolyl sulfone at a 1% concentration;
- and
- contacting the porous media with a second solution comprising a second antimicrobial agent which is a combination of zinc omadine and thiabendazole at a 0.3% concentration.
An antimicrobial air filter comprising:
- a frame;
- and
- a porous filter media having a first antimicrobial agent which is diiodomethyl-p-tolyl sulfone in contact with the porous filter media and having a concentration between 150 parts per million and 250 parts per million, and a second antimicrobial agent which is a combination of zinc omadine and thiabendazole in contact with the porous filter media and having a concentration between 350 parts per million and 450 parts per million.
Dependencies are inferred from the claim text.